RoadInventoryReport_Fort_Raleigh_National_Historic_Site_Cycle4.pdf

The Road Inventory of

Fort Raleigh National Historic Site

FORA – 5185

Cycle 4

Prepared By:

Federal Highway Administration Road Inventory Program Cycle 4

Fort Raleigh National Historic Site in

North Carolina

Fort Raleigh National Historic Site

Atlanta

Columbia

Charlotte

Raleigh

Charleston Richmond

Norfolk Virginia Beach

TABLE OF CONTENTS

SECTION PAGE

1. INTRODUCTION 1 - 1

2. PARK SUMMARY INFORMATION

Paved Route Miles and Percentages by Functional Class and PCR 2 – 1 ARAN Road Condition Summary 2 – 2 Parkwide Condition Summary 2 – 3 Cycle 2 vs Cycle 3 vs Cycle 4 Condition Comparisons 2 – 4

3. PARK ROUTE LOCATION / CONDITION MAPS

Route Location Key Map 3 – 1 Route Location Area Map 3 – 2 Route Condition Key Map – PCR Mile by Mile 3 – 3 Route Condition Area Map – PCR Mile by Mile 3 – 4

4. PARK ROUTE INVENTORY

Route Identification Report 4 – 1

5. PAVED ROUTE CONDITION RATING SHEETS (CRS)

CRS Pages 5 – 1

6. MANUALLY RATED PAVED ROUTE CONDITION

RATING SHEETS (MRR)

MRR Pages 6 – 1

7. PARKING AREA CONDITION RATING SHEETS

Paved Parking Area Pages 7 – 1

8. PARKWIDE / ROUTE MAINTENANCE FEATURES

SUMMARIES

Parkwide Maintenance Features Summary 8 – 1 Route Maintenance Features Summary 8 – 2 Structure List 8 – 3

9. PARK ROUTE MAINTENANCE FEATURES ROAD LOGS

Route Maintenance Features Road Logs 9 – 1

10. APPENDIX

A. Glossary of Terms and Abbreviations 10 – 1 B. Description of Rating System 10 – 2 C. General Information on RIP Systems 10 – 8 D. Metadata 10 – 11

Fort Raleigh National Historic Site

Section 1 Introduction

INTRODUCTION

Background: In 1976, the National Park Service (NPS) and the Federal Highway Administration (FHWA) entered into a Memorandum of Agreement (MOA), establishing the Road Inventory Program (RIP). In 1980, the NPS and the FHWA terminated the 1976 MOA and entered into a new MOA that provided for the completion of the initial phase of the RIP. The purpose of the RIP, per the 1980 MOA was to maintain and update RIP data in order to develop long-range costs and programs to bring National Park Service (NPS) roads up to, or to maintain, designated standards, and establish a maintenance management program.

The FHWA’s Federal Lands Highway (FLH) was assigned the task of identifying condition deficiencies and corrective priorities along with associated corrective costs, inventorying maintenance features (e.g., culverts, signs, guardrail, etc.), summarizing the data and findings in a report and providing a photographic record of the road system.

The FLH completed the initial phase of the RIP in the early 1980’s. As a result of this effort, each park received a RIP book, also known as the “Brown Book,” that included the information collected during this initial RIP phase.

In an effort to maintain and update the RIP data, a cyclical data collection and reporting process was reestablished in the 1990’s. The FLH completed two cycles of RIP data collection between 1994 and 2001. Cycle 1 was collected in 44 large parks from 1994 to 1996. This data was found to be unusable for comparison to future cycles. Cycle 2 data was collected from March 1997 to January 2001 in 79 large parks and 5 small parks containing 4,874 route miles.

Each park received a copy of a Cycle 2 RIP Report, also known as the “Blue Book”. Cycle 3 was completed from 2001 through 2004, and included data collection in all parks that contain pavement.

Since 1984, the RIP Program has been funded through the Federal Lands Highway Program’s Park Roads and Parkways (PRP) Program. Currently, the NPS Washington Headquarters’ Park Facility Management Division is responsible for coordinating the RIP program with the FLH. The FLH Washington office coordinates policy and prepares national reports and needs assessment studies for congress.

In 1998, the Transportation Equity Act for the 21st Century (TEA-21) amended Title 23 U.S.C., and inserted Section 204(a)(6) which requires the Federal Highway Administration and the National Park Service, to develop, by rule, a Pavement Management System (PMS) for the park roads and parkways serving the National Park System. As a result of the requirements in TEA-21, the NPS and FHWA are in the process of developing a PMS. The PMS will assist the decision-makers in effectively spending limited PRP Program funds. The PMS

1 - 1 will provide information for planning and programming road maintenance, rehabilitation, and reconstruction activities. RIP data will provide the basic information for this system.

Key information included in the RIP is the mileage inventory and condition assessments accomplished by the RIP Program. The mileage and condition data are used in the current allocation formula of PRP Program funds.

RIP Cycle 4: Cycle 4 data collection was initiated in spring 2006, where 86 large parks, consisting of 5,553 route miles and 6,232 paved parking areas, were selected as a representative sample of the entire NPS paved road network. Cycle 4 is scheduled for completion in spring 2009 and will serve the PMS in further development of its pavement preservation techniques.

In the Cycle 4 Reports, a general condition rating of excellent, good, fair and poor is ascribed to each one-mile section of paved roadway, and to each paved parking area. This condition rating system provides a realistic means of assessing the general funding needs for road improvements. Along with these descriptive condition ratings, a numerical rating between 0 and 100 is ascribed to each mile of road and to each parking area. This numerical rating is called a Pavement Condition Rating (PCR). The PCR rating system is described in Section 10 of this report.

All of the fieldwork required for obtaining inventory, condition, and maintenance feature information is coordinated with each park and the regional offices to ensure that the information in the RIP reports is accurate.

The FLH is responsible for all the data presented in this report. Anyone having questions or comments regarding the contents of this report is encouraged to contact the FHWA RIP Coordinator. It is our aim to provide exceptional customer satisfaction in our delivery of the RIP program.

The FHWA RIP Team

FHWA/EFLHD FHWA/CFLHD

21400 Ridgetop Circle 12300 West Dakota Ave.

Sterling, VA 20166 Lakewood, CO 80228

(703) 404-6371 (720) 963-3560

1 - 2

Section 2 Park Summary Information

FORA: PAVED ROUTE MILES AND PERCENTAGES

BY FUNCTIONAL CLASS AND PCR

Pavement Condition Rating (PCR) Poor (<=60) Fair (61-84) Good (85-94) Excellent (95-100) TOTAL

F.C. MILES % MILES % MILES % MILES % MILES

1 0.02 1.26% 0.39 24.53% 0.12 7.55% 0.28 17.61% 0.81 5 0.24 15.09% 0.25 15.72% 0.29 18.24% 0.78

Totals 0.02 1.26% 0.63 39.62% 0.37 23.27% 0.57 35.85% 1.59

2-1

FORA: ARAN ROAD CONDITION SUMMARY

ROUTE

NUMBER ROUTE NAME

FUNCT

CLASS

ROUTE

LENGTH

SURFACE

TYPE

AVERAGE

SURFACE

CONDITION

RATING (SCR)

AVERAGE

PAVEMENT

CONDITION

RATING (PCR)

0010 FR RD FORT RALEIGH ROAD 1 0.51 ASPHALT 84 84

0011 FR RD NATIONAL PARK DRIVE 1 0.30 ASPHALT 83 84

0400 FR RD THEATER ACCESS ROAD 5 0.11 ASPHALT 82 82

0401 FR RD PEAR PAD ROAD 5 0.55 ASPHALT 92 92

0404 FR RD WATER TOWER ROAD 5 0.12 ASPHALT 79 75

Data Collected 03/18/2007

ARAN ROAD CONDITION SUMMARY

84 83 82

84 84 82

0010 0011 0400 0401 0404

ROUTE NUMBER

SC

R

/P C

R

AVERAGE SURFACE

CONDITION RATING (SCR)

AVERAGE PAVEMENT

CONDITION RATING (PCR)

2-2

FORA: PARKWIDE CONDITION SUMMARY

**AVERAGE

PAVEMENT

CONDITION

RATING (PCR)

*AVERAGE

ROUGHNESS

CONDITION

INDEX (RCI)

*AVERAGE

SURFACE

CONDITION

RATING (SCR)

*AVERAGE

RUT INDEX

*AVERAGE

ALLIGATOR

CRACKING

INDEX

*AVERAGE

LONGITUDINAL

CRACKING

INDEX

*AVERAGE

TRANSVERSE

CRACKING

INDEX

*AVERAGE

PATCHING

INDEX

87 87 87 90 100 99 98 100

** PCR Index is based on all ARAN-driven roads, parking areas, and manually rated routes.

* Index values are based on ARAN-driven roads only.

Data Collected 03/18/2007

PARKWIDE CONDITION SUMMARY

87 87 87

100 99 98

**AVERAGE PAVEMENT

CONDITION RATING

(PCR)

*AVERAGE

ROUGHNESS

CONDITION INDEX (RCI)

*AVERAGE SURFACE

CONDITION RATING

(SCR)

*AVERAGE RUT INDEX *AVERAGE ALLIGATOR

CRACKING INDEX

*AVERAGE

LONGITUDINAL

CRACKING INDEX

*AVERAGE

TRANSVERSE

CRACKING INDEX

*AVERAGE PATCHING

INDEX

R A

TI

N

G

2-3

: CYCLE 2 vs CYCLE 3 vs CYCLE 4 CONDITION COMPARISONS

R O

U

TE

N U

M B

ER

PA

V

ED

M

ILES

FR

O

M M

ILEPO

ST TO

M

ILEPO

ST

C Y

C

LE 2

C Y

C

LE 3

C Y

C

LE 4

PERCENT

CHANGE

C Y

C

LE 2

C Y

C

LE 3

C Y

C

LE 4

PERCENT

CHANGE

C Y

C

LE 2

C Y

C

LE 3

C Y

C

LE 4

PERCENT

CHANGE

PAVEMENT CONDTION

RATING (PCR)

SURFACE CONDITION

RATING (SCR)

ROUGHNESS CONDITION

INDEX (RCI)

COMMENT

FORA

0010 0.51 0.00 0.51 N/A 87 84 -3% N/A 85 84 -1% N/A 94 83 -12%

0011 0.30 0.00 0.30 N/A 83 84 +1% N/A 80 83 +4% N/A 88 81 -8%

0400 0.11 0.00 0.11 N/A N/A 82 N/A N/A N/A 82 N/A N/A N/A N/A N/A Route not collected in Cycle 3. No RCI collected in Cycle 4.

0401 0.55 0.00 0.55 N/A 82 92 +12% N/A 78 92 +18% N/A 93 93 0%

0404 0.12 0.00 0.12 N/A 60 75 +25% N/A 64 79 +23% N/A 30 52 +73%

PCR

0010 0011 0400 0401 0404

SCR

0010 0011 0400 0401 0404

RCI

0010 0011 0400 0401 0404

Cycle 4 Data Collected 3/18/2007 - 3/18/2007 Page 2 - 4

CYCLE 2

CYCLE 3

CYCLE 4

CYCLE 2 CYCLE 2

CYCLE 3 CYCLE 3

CYCLE 4 CYCLE 4

Section 3 Park Route Location / Condition

Maps

3-1ºPark Owned Routes

Route Location Map

Key Map

0.3 0 0.30.15 Miles

Rte 0900CZ Rte 0900BZ Rte 0900AZ

Rte 0903 Rte 0902 Rte 0904

Rte 0901

Rte 0905 Rte 0401

Rte

Rt e

Rte 0400

Rte 0011

3-2º Unique colors used to differentiate routes

Fort Raleigh National Historic Site Route Location Map

Area 1

3-3º

Route Condition Map PCR - Mile by Mile

Key Map

0.3 0 0.30.15 Miles

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(<=60) (61 - 84) (85 - 94) (95 - 100)

Poor Fair Good Excellent

Rte 0401

Rte 0011

Rte

Rt e

Rte 0400

3-4º

Fort Raleigh National Historic Site Route Condition Map PCR - Mile by Mile

Area 1

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(<=60) (61 - 84) (85 - 94) (95 - 100)

Poor Fair Good Excellent

Section 4 Park Route Inventory

Section 5 Paved Route Condition Rating Sheets

(CRS)

0 Rte

º

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(<=60) (61 - 84) (85 - 94) (95 - 100)

Poor Fair Good Excellent

SOUTHEAST REGION

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

ROUTE: 0010 FR RD FORT RALEIGH ROAD TOTAL LENGTH: 0.51 Miles Section Number 0 Section Length (mi) 0.51 Traffic

AADT

SADT

ADT Date

Cross Section Information Number of Lanes 2 Paved Width (ft) 26 Lane Width (ft) 15 Shoulder Width Right (ft)** 0 Shoulder Width Left (ft)** 4

Roadway Condition Information SCR (Surface Condition Rating) 84 PCR (Pavement Condition Rating) 84

Distress Index Values Alligator Cracking Index 100 Longitudinal Cracking Index 99 Tranverse Cracking Index 98 Patching Index 100 Rutting Index 87 Roughness Condition Index (RCI) 83 ** Shoulder widths are measured from video at 0.50 mile intervals along route tangents. Visibility of actual shoulders in video 5-1 images may affect accuracy of measured shoulder widths.

Traffic data may be found at www.efl.fhwa.dot.gov Click on PROGRAMS / NPS Traffic Data (Note: Not all parks have traffic data)

R O

U T

E :0

FR

R

D

FO

R T

R A

L E

IG

H

R O

A D

Rte 00110

º

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(<=60) (61 - 84) (85 - 94) (95 - 100)

Poor Fair Good Excellent

SOUTHEAST REGION

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

ROUTE: 0011 FR RD NATIONAL PARK DRIVE TOTAL LENGTH: 0.30 Miles Section Number 0 Section Length (mi) 0.30 Traffic

AADT

SADT

ADT Date

Cross Section Information Number of Lanes 2 Paved Width (ft) 23 Lane Width (ft) 11 Shoulder Width Right (ft)** 8 Shoulder Width Left (ft)** 7

Roadway Condition Information SCR (Surface Condition Rating) 83 PCR (Pavement Condition Rating) 84

Distress Index Values Alligator Cracking Index 99 Longitudinal Cracking Index 99 Tranverse Cracking Index 98 Patching Index 100 Rutting Index 87 Roughness Condition Index (RCI) 81 ** Shoulder widths are measured from video at 0.50 mile intervals along route tangents. Visibility of actual shoulders in video 5-2 images may affect accuracy of measured shoulder widths.

Traffic data may be found at www.efl.fhwa.dot.gov Click on PROGRAMS / NPS Traffic Data (Note: Not all parks have traffic data)

R O

U T

E :0

FR

R

D N

A T

IO

N

A L

PA

R

K D

R

IV

E

!0

Rte 0400

º

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(<=60) (61 - 84) (85 - 94) (95 - 100)

Poor Fair Good Excellent

SOUTHEAST REGION

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

ROUTE: 0400 FR RD THEATER ACCESS ROAD TOTAL LENGTH: 0.11 Miles Section Number 0 Section Length (mi) 0.11 Traffic

AADT

SADT

ADT Date

Cross Section Information Number of Lanes 1 Paved Width (ft) 13 Lane Width (ft) 13 Shoulder Width Right (ft)** 4 Shoulder Width Left (ft)** 3

Roadway Condition Information SCR (Surface Condition Rating) 84 PCR (Pavement Condition Rating) 84

Distress Index Values Alligator Cracking Index 98 Longitudinal Cracking Index 98 Tranverse Cracking Index 98 Patching Index 100 Rutting Index 89 Roughness Condition Index (RCI) NC ** Shoulder widths are measured from video at 0.50 mile intervals along route tangents. Visibility of actual shoulders in video 5-3 images may affect accuracy of measured shoulder widths.

Traffic data may be found at www.efl.fhwa.dot.gov Click on PROGRAMS / NPS Traffic Data (Note: Not all parks have traffic data)

R O

U T

E :0

FR

R

D T

H E

A T

E R

A C

C E

SS

R

O

º

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(<=60) (61 - 84) (85 - 94) (95 - 100)

Poor Fair Good Excellent

SOUTHEAST REGION

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

ROUTE: 0401 FR RD PEAR PAD ROAD TOTAL LENGTH: 0.55 Miles Section Number 0 Section Length (mi) 0.55 Traffic

AADT

SADT

ADT Date

Cross Section Information Number of Lanes 2 Paved Width (ft) 21 Lane Width (ft) 11 Shoulder Width Right (ft)** 3 Shoulder Width Left (ft)** 4

Roadway Condition Information SCR (Surface Condition Rating) 92 PCR (Pavement Condition Rating) 92

Distress Index Values Alligator Cracking Index 100 Longitudinal Cracking Index 100 Tranverse Cracking Index 100 Patching Index 100 Rutting Index 93 Roughness Condition Index (RCI) 93 ** Shoulder widths are measured from video at 0.50 mile intervals along route tangents. Visibility of actual shoulders in video 5-4 images may affect accuracy of measured shoulder widths.

Traffic data may be found at www.efl.fhwa.dot.gov Click on PROGRAMS / NPS Traffic Data (Note: Not all parks have traffic data)

R O

U T

E :0

FR

R

D

PE

A R

PA

D

R O

0Rt e

º

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(<=60) (61 - 84) (85 - 94) (95 - 100)

Poor Fair Good Excellent

SOUTHEAST REGION

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

ROUTE: 0404 FR RD WATER TOWER ROAD TOTAL LENGTH: 0.12 Miles Section Number 0 Section Length (mi) 0.12 Traffic

AADT

SADT

ADT Date

Cross Section Information Number of Lanes 1 Paved Width (ft) 12 Lane Width (ft) 12 Shoulder Width Right (ft)** 6 Shoulder Width Left (ft)** 8

Roadway Condition Information SCR (Surface Condition Rating) 79 PCR (Pavement Condition Rating) 75

Distress Index Values Alligator Cracking Index 99 Longitudinal Cracking Index 96 Tranverse Cracking Index 92 Patching Index 100 Rutting Index 93 Roughness Condition Index (RCI) 52 ** Shoulder widths are measured from video at 0.50 mile intervals along route tangents. Visibility of actual shoulders in video 5-5 images may affect accuracy of measured shoulder widths.

Traffic data may be found at www.efl.fhwa.dot.gov Click on PROGRAMS / NPS Traffic Data (Note: Not all parks have traffic data)

R O

U T

E :0

FR

R

D W

A T

E R

T O

W E

R R

O

Section 6 Manually Rated Paved Route

Condition Rating Sheets (MRR)

Section 6: Manually Rated Paved Route Condition Rating Sheets

No data available for this section.

Section 7 Parking Area Condition Rating Sheets

FORT RALEIGH NATIONAL HISTORIC SITE

Route 0900ZZ

FR RD VISITOR CENTER PARKING AREAS

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.34 (ON RIGHT)

TO ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.47 (ON RIGHT)

Summary Record

Route Number

Public / NonPublic Lane Miles *

0900ZZ PUBLIC 0.36

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-1

Surface Type

AS

PCR

SUMMARY/76.13

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 20,844

º180 0 18090 Feet

Rte 0903

Rte 0901

Rte

Rte 0011

Rte 0900BZ Rte 0900CZ

Rte 0900AZ

Route 0900AZ

FR RD VISITOR CENTER LOOP PARKING A

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.43 (ON RIGHT)

TO ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.47 (ON RIGHT)

Subcomponent Record

Route Number

Public / NonPublic Lane Miles *

0900AZ PUBLIC 0.16

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-2

Surface Type

AS

PCR

FAIR/73

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 9,350

º170 0 17085 Feet

Rte 0903

Rte 0900BZ Rte 0900CZ

Rte

Route 0900BZ

FR RD VISITOR CENTER LOOP PARKING B

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.38 (ON RIGHT)

TO ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.41 (ON RIGHT)

Subcomponent Record

Route Number

Public / NonPublic Lane Miles *

0900BZ PUBLIC 0.13

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-3

Surface Type

AS

PCR

FAIR/73

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 7,685

º170 0 17085 Feet

Rte 0903

Rte 0900AZ

Rte 0900CZ

Rte

Route 0900CZ

FR RD VISITOR CENTER LOOP PARKING C

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.34 (ON RIGHT)

TO PARKING

Subcomponent Record

Route Number

Public / NonPublic Lane Miles *

0900CZ PUBLIC 0.07

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-4

Surface Type

AS

PCR

GOOD/90

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 3,809

º160 0 16080 Feet

Rte 0903

Rte 0900AZ

Rte 0900BZ

Rte

Route 0901

FR RD GROUP HEADQUARTERS PARKING

FROM ROUTE 0011 (FR RD NATIONAL PARK DRIVE) AT MP 0.08 (ON RIGHT)

TO ROUTE 0011 (FR RD NATIONAL PARK DRIVE) AT MP 0.12 (ON RIGHT)

Route Number

Public / NonPublic Lane Miles *

0901 NONPUBLIC 0.22

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-5

Surface Type

AS

PCR

GOOD/90

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 12,548

º200 0 200100 Feet

Rte 0904

Route 0902

FR RD MAINTENANCE AREA PARKING

FROM ROUTE 0401 (FR RD PEAR PAD ROAD) AT MP 0.29 (ON LEFT)

TO PARKING

Route Number

Public / NonPublic Lane Miles *

0902 NONPUBLIC 0.55

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-6

Surface Type

AS

PCR

FAIR/73

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 32,154

º300 0 300150 Feet

Rte

Route 0903

FR RD THEATER PARKING

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.30 (ON RIGHT)

TO ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.37 (ON RIGHT)

Route Number

Public / NonPublic Lane Miles *

0903 PUBLIC 3.28

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-7

Surface Type

AS

PCR

GOOD/90

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 190,716

º510 0 510255 Feet

Rte 0901 Rte 0900AZ

Rte 0900BZ Rte 0900CZ

Rte

Rte 0400

Route 0904

FR RD ELIZABETHAN GARDEN PARKING

FROM ROUTE 0011 (FR RD NATIONAL PARK DRIVE) AT MP 0.24 (ON RIGHT)

TO PARKING

Route Number

Public / NonPublic Lane Miles *

0904 PUBLIC 0.27

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-8

Surface Type

AS

PCR

GOOD/90

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/8/2007

Area (sq ft) 15,869

º230 0 230115 Feet

Rte 0901

Route 0905

ELIZABETHAN GARDEN MAINTENANCE FACILITY

FROM ROUTE 0401 (FR RD PEAR PAD ROAD) AT MP 0.28 (ON RIGHT)

TO MAINTENANCE FACILITY

Route Number

Public / NonPublic Lane Miles *

0905 NONPUBLIC 0.03

Culverts Drop Inlets Gates Fire

Hydrants Curb

0 0 0 0 NO CURB

* Lane miles are based on 11' lane widths

7-9

Surface Type

AS

PCR

POOR/45

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 1/10/2007

Area (sq ft) 1,474

º90 0 9045 Feet

Rte 0902

Section 8 Parkwide / Route Maintenance

Features Summaries

FORA: PARKWIDE MAINTENANCE FEATURES SUMMARY

FEATURE LINEAR FEET COUNT

BARRIER 0 --

BOLLARD 0 --

BRIDGE -- 0

CABLE 0 --

CATTLE GUARD -- 0

CULVERT -- 3

CURB 982 --

DROP INLET -- 0

FIRE HYDRANT -- 4

GATE -- 1

GUARD/GUIDE RAIL 0 --

GUARD/GUIDE WALL 0 --

INTERSECTION -- 37

LOW WATER CROSSING 0 0

MILE MARKER -- 0

OVERPASS -- 0

OVERHEAD SIGN -- 0

PARK BOUNDARY -- 0

PAVED DITCH 0 --

PULLOUT -- 0

RAILROAD CROSSING -- 0

RETAINING WALL -- 0

SIGN -- 34

STATE BOUNDARY -- 0

TEMPORARY BARRIER 0 --

TRAFFIC LIGHT -- 0

TUNNEL -- 0

TURNOUT 0 --

Data Collected 3/18/2007

Notice: Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 4, therefore the culvert and drop inlet count below includes those on ARAN-driven routes, Manually Rated Routes and in Paved Parking Areas.

8-1

FORA: ROUTE MAINTENANCE FEATURES SUMMARY

FEATURE R

O

U T

E

FR

R

D F

O R

T R

A L

E

IG

H R

O A

D

R O

U T

E

FR

R

D N

A T

IO

N

A L

P A

R K

D R

IV

E

R O

U T

E

FR

R

D T

H E

A T

E R

A C

C E

SS

R

O A

D

R O

U T

E

FR

R

D P

E A

R P

A D

R O

A D

R O

U T

E

FR

R

D W

A T

E R

T O

W E

R R

O A

D

UNIT

BARRIER LINEAR FEET

BOLLARD LINEAR FEET

BRIDGE EACH

CABLE LINEAR FEET

CATTLE GUARD EACH

CULVERT EACH

CURB LINEAR FEET

DROP INLET EACH

FIRE HYDRANT EACH

GATE EACH

GUARD/GUIDE RAIL LINEAR FEET

GUARD/GUIDE WALL LINEAR FEET

INTERSECTION EACH

LOW WATER CROSSING EACH

LOW WATER CROSSING LINEAR FEET

MILE MARKER EACH

OVERHEAD SIGN EACH

OVERPASS EACH

PARK BOUNDARY EACH

PAVED DITCH LINEAR FEET

PULLOUT EACH

RAILROAD CROSSING EACH

RETAINING WALL EACH

SIGN EACH

STATE BOUNDARY EACH

TEMPORARY BARRIER LINEAR FEET

TRAFFIC LIGHT EACH

TUNNEL EACH

TURNOUT LINEAR FEET

Data Collected 3/18/2007

0 0

Notice: Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 4, therefore the culvert and drop inlet count above includes those on ARAN-driven routes, Manually Rated Routes and in Paved Parking Areas.

0 0

8-2

FORA: STRUCTURE LIST

ROUTE

NUMBER

FUNCTIONAL

CLASS

MILEPOST

START

MILEPOST

END FEATURE

STRUCTURE

NUMBER

No data available for this section.

Data Collected 3/18/2007 8-3

Section 9 Park Route Maintenance Features

Road Logs

FROM

MILEPOST

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0010: FR RD FORT RALEIGH ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

0.000 ROUTE BEGIN N/A FROM STATE HIGHWAY 640.000

0.000 INTERSECTION RIGHT SR 640.000

0.000 SIGN RIGHT REGULATORY, STOP0.000

0.000 INTERSECTION LEFT SR 640.000

0.018 CURB RIGHT 0.004

0.006 CURB LEFT 0.005

0.007 SIGN RIGHT GUIDE, FORT RALEIGH NATIONAL HISTORIC SITE0.007

0.007 SIGN RIGHT GUIDE, LOST COLONY OUTDOOR DRAMA0.007

0.007 SIGN RIGHT GUIDE, THE ELIZABETHAN GARDEN0.007

0.010 CULVERT N/A0.010

0.020 SIGN RIGHT GUIDE, ROANOKE ISLAND AQUARIUM WATERFRONT

FESTIVAL PARK ELIZABETH II

0.020

0.023 INTERSECTION RIGHT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR 0.023

0.035 SIGN RIGHT GUIDE, NATIONAL PARK SERVICE0.035

0.053 SIGN RIGHT WARNING, GRAPHIC SIGN, NO TEXT0.053

0.066 SIGN RIGHT REGULATORY, SPEED LIMIT 200.066

0.131 SIGN RIGHT GUIDE, ELIZABETHAN GARDENS FT. RALEIGH VISITOR

CENTER THE LOST COLONY

0.131

0.156 SIGN RIGHT REGULATORY, SPEED LIMIT 200.156

0.171 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE) 0.171

0.195 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.195

0.215 CURB LEFT 0.197

0.199 SIGN LEFT REGULATORY, ONE WAY0.199

0.218 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR 0.218

0.232 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR 0.232

0.262 CULVERT N/A0.262

0.289 SIGN RIGHT GUIDE, THEATER PARKING & BOX OFFICE VISITOR CENTER

CIVIL WAR MARKER

0.289

0.298 INTERSECTION RIGHT ROUTE 0903 (FR RD THEATER PARKING) 0.298

0.344 INTERSECTION RIGHT ROUTE 0900CZ (FR RD VISITOR CENTER LOOP PARKING C) 0.344

0.372 CURB RIGHT 0.359

0.372 INTERSECTION RIGHT ROUTE 0903 (FR RD THEATER PARKING) 0.372

0.376 INTERSECTION RIGHT ROUTE 0900BZ (FR RD VISITOR CENTER LOOP PARKING B) 0.376

0.406 CURB RIGHT 0.379

0.407 INTERSECTION RIGHT ROUTE 0900BZ (FR RD VISITOR CENTER LOOP PARKING B) 0.407

9-1Data Collected 3/18/2007

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0010: FR RD FORT RALEIGH ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

0.425 CURB RIGHT 0.410

0.429 INTERSECTION RIGHT ROUTE 0900AZ (FR RD VISITOR CENTER LOOP PARKING A) 0.429

0.468 CURB RIGHT 0.431

0.472 INTERSECTION RIGHT ROUTE 0900AZ (FR RD VISITOR CENTER LOOP PARKING A) 0.472

0.498 CURB RIGHT 0.475

0.479 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.479

0.488 CURB LEFT 0.482

0.483 SIGN LEFT REGULATORY, KEEP RIGHT0.483

0.491 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.491

0.510 CURB LEFT 0.492

0.510 INTERSECTION N/A ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.510

0.510 SIGN RIGHT GUIDE, ELIZABETHAN GARDENS0.510

0.510 ROUTE END N/A TO END OF LOOP0.510

9-2Data Collected 3/18/2007

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0011: FR RD NATIONAL PARK DRIVE

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

0.000 ROUTE BEGIN N/A FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD) AT MP 0.17

(ON LEFT)

0.000

0.000 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.000

0.000 INTERSECTION RIGHT ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.000

0.000 SIGN N/A GUIDE, 64 EXIT TO HWY 64 WATERSIDE THEATRE VISITOR

CENTER

0.000

0.000 SIGN RIGHT REGULATORY, STOP0.000

0.006 SIGN RIGHT GUIDE, FORT RALEIGH RD0.006

0.007 SIGN RIGHT GUIDE, ELIZABETHAN GARDENS FT. RALEIGH VISITOR

CENTER THE LOST COLONY

0.007

0.007 SIGN RIGHT GUIDE, CIVIL WAR MARKER0.007

0.025 SIGN RIGHT REGULATORY, SPEED LIMIT 200.025

0.078 CURB RIGHT 0.073

0.080 INTERSECTION RIGHT ROUTE 0901 (FR RD GROUP HEADQUARTERS PARKING) 0.080

0.087 SIGN RIGHT GUIDE, ELIZABETHAN GARDENS0.087

0.092 CULVERT N/A0.092

0.120 INTERSECTION RIGHT ROUTE 0901 (FR RD GROUP HEADQUARTERS PARKING) 0.120

0.126 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD) 0.126

0.134 SIGN LEFT GUIDE, UNABLE TO READ FROM VIDEO0.134

0.135 SIGN RIGHT GUIDE, PEAR PAD RD0.135

0.161 SIGN RIGHT REGULATORY, SPEED LIMIT 200.161

0.165 FIRE HYDRANT RIGHT 0.165

0.186 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.186

0.224 CURB RIGHT 0.220

0.222 SIGN RIGHT GUIDE, PARKING GARDEN VISITORS ONLY0.222

0.226 SIGN LEFT GUIDE, ELIZABETHAN GARDENS GARDENS VISITOR PARKING

ONLY BUS DROP OFF

0.226

0.243 INTERSECTION RIGHT ROUTE 0904 (FR RD ELIZABETHAN GARDEN PARKING) 0.243

0.296 CURB RIGHT 0.291

0.300 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE) 0.300

0.300 INTERSECTION RIGHT ROUTE 0011 (FR RD NATIONAL PARK DRIVE) 0.300

0.300 ROUTE END N/A TO END OF LOOP0.300

9-3Data Collected 3/18/2007

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0400: FR RD THEATER ACCESS ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

0.000 ROUTE BEGIN N/A FROM ROUTE 0903 AT NORTHWEST CORNER0.000

0.000 INTERSECTION N/A ROUTE 0903 (FR RD THEATER PARKING)0.000

0.005 SIGN RIGHT GUIDE, NATIONAL PARK SERVICE0.005

0.016 SIGN RIGHT GUIDE, AUTHORIZED VEHICLES ONLY0.016

0.076 SIGN RIGHT GUIDE, VISITOR CENTER TICKET OFFICE PARKING LOT0.076

0.086 FIRE HYDRANT LEFT 0.086

0.110 ROUTE END N/A TO END AT THEATER TURNAROUND AREA0.110

9-4Data Collected 3/18/2007

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0401: FR RD PEAR PAD ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

0.000 ROUTE BEGIN N/A FROM ROUTE 0011 (FR RD NATIONAL PARK DRIVE) AT MP 0.13

(ON LEFT)

0.000

0.000 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.000

0.000 INTERSECTION RIGHT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.000

0.000 SIGN RIGHT REGULATORY, STOP0.000

0.009 SIGN RIGHT GUIDE, SERVICE ROAD MAINTENANCE AND RESIDENCE AREA0.009

0.057 SIGN RIGHT REGULATORY, SPEED LIMIT 150.057

0.057 SIGN RIGHT WARNING, SLOW CHILDREN AT PLAY0.057

0.094 INTERSECTION LEFT ROUTE 0404 (FR RD WATER TOWER ROAD) 0.094

0.282 INTERSECTION RIGHT ROUTE 0905 (ELIZABETHAN GARDEN MAINTENANCE

FACILITY)

0.282

0.294 INTERSECTION LEFT ROUTE 0902 (FR RD MAINTENANCE AREA PARKING) 0.294

0.307 FIRE HYDRANT LEFT 0.307

0.406 FIRE HYDRANT LEFT 0.406

0.519 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD)0.519

0.535 SIGN RIGHT GUIDE, GRAPHIC SIGN, NO TEXT0.535

0.550 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD) 0.550

0.550 INTERSECTION RIGHT ROUTE 0401 (FR RD PEAR PAD ROAD) 0.550

0.550 ROUTE END N/A TO END OF LOOP0.550

9-5Data Collected 3/18/2007

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0404: FR RD WATER TOWER ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

0.000 ROUTE BEGIN N/A FROM ROUTE 0401 (FR RD PEAR PAD ROAD) AT MP 0.09 (ON

LEFT)

0.000

0.000 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD)0.000

0.000 INTERSECTION RIGHT ROUTE 0401 (FR RD PEAR PAD ROAD)0.000

0.007 GATE N/A 0.007

0.120 ROUTE END N/A TO END AT SHED ON LEFT0.120

9-6Data Collected 3/18/2007

Section 10 Appendix

APPENDIX A: GLOSSARY OF TERMS AND ABBREVIATIONS

TERM OR

ABBREVIATION DESCRIPTION OR DEFINITION

AADT

(Annual Average Daily Traffic) The estimate of typical daily traffic on a road segment for all days of the week over the period of one year.

CRS Condition Rating Sheets. (Section 5)

Excellent Excellent rating with an index value of 95 or greater

Fair Fair rating with an index value from 61 to 84

Func. Class Funtional Classification (see Route ID, Section 4)

Good Good rating with an index value from 85 to 94

IRI International Roughness Index

Lane Width Width from road centerline to fogline, or from centerline to edge-of-pavement when no fogline exists

MRR Manually Rated Route

N/A Not Applicable

NC Not Collected

Paved Width Width from edge-of-pavement to edge-of-pavement

PCR Pavement Condition Rating (Appendix B, Section 10)

Poor Poor Rating with an index value of 60 or less

RCI Roughness Condition Index

SADT (Seasonal Annual Daily Traffic) The AADT adjusted to represent just the period of the year containing 80 percent of the total annual traffic.

SCR Surface Condition Rating (Appendix B, Section 10)

Shoulder Width Distance from fogline to hinge point, or if no fogline, from edge-of-pavement to hinge point.

10-1

APPENDIX B: DESCRIPTION OF RATING SYSTEM

A numerical roadway rating system is used to describe the overall condition of the paved roadways and paved parking areas. In this system, a numerical rating between 0 and 100 is ascribed to each 0.02 miles of road. This numerical rating is called a Pavement Condition Rating (PCR). A “perfect” road, newly constructed with no surface distresses and a smooth surface, would be assigned a PCR rating of 100. Based on the type, severity, and extent of surface distresses points are deducted from 100 to arrive at the final PCR.

Data is collected on the following distresses and conditions:

- Alligator Cracking - a series of interconnecting cracks resembling alligator skin or chicken wire, which can occur anywhere in the lane.

- Longitudinal Cracking - cracks which are parallel to the pavement centerline or asphalt lay-down direction.

- Transverse Cracking - cracks perpendicular to the pavement centerline.

- Pothole (patch) - a bowl-shaped hole in the pavement surface. May be patched or not.

- Rutting - surface depressions in the wheel paths.

- Roughness is collected as International Roughness Index (IRI) and is used in the PCR formula. Roughness is measured in inches of vertical displacement of the vehicle per mile traveled.

A Distress Rating Index value is calculated for each of the individual distresses at the 0.02 mile, or every

105.6 feet.

Calculation of Index Values

Note: Index values < 0 default to 0. Index values > 100 default to 100.

For all indices, a higher value indicates a better road condition, and a lower value indicates a poorer road condition.

All severity protocols are taken from the SHRP Distress Identification Manual.

Condition Ranges for all Indices

Excellent >=95 Good >=85 and <95 Fair >60 and <85 Poor <=60

Alligator Crack Index

AC_INDEX = 100 – 40 * [(%LOW / 70) + (%MED / 30) + (%HI / 10)]

Where :

The values %LOW, %MED and %HI describe the percent of the total WX measured area that is affected by alligator cracking of each severity level. These values range from 0 to 100.

%LOW = (Total square area WX measured low severity alligator cracking) / (Section length * WX measured lane width)

10-2

%MED = (Total square area WX measured medium severity alligator cracking) / (Section length * WX measured lane width) %HI = (Total square area WX measured high severity alligator cracking) / (Section length * WX measured lane width)

The denominators 70, 30, and 10 are the maximum allowable extents for the numerator value in the same units. For example, low severity alligator cracking totaling 70% of the measured section area would alone fail that section of road for this index.

The threshold for failure for this index is AC_INDEX = 60.

Severity Levels:

Low severity alligator cracking describes an area of cracks with no or only a few connecting cracks; cracks are not spalled (cracked, broken, chipped, frayed along the cracks); pumping (water seepage from beneath the pavement through the cracks) is not evident. Any sealed alligator cracks are low severity alligator cracks, as long as the sealant is still in good condition. If the sealant has reopened, and the crack is visible and can be measured, the crack severity is assigned according to that measurement.

Medium severity alligator cracking describes an area of interconnected cracks forming a complete pattern;

cracks may be slightly spalled; pumping is not evident.

High severity alligator cracking describes an area of moderately or severely spalled interconnected cracks forming a complete pattern; pieces may move when subjected to traffic; pumping may be evident.

Longitudinal Crack Index

LC_INDEX = 100 – 40 * [(%LOW / 350) + (%MED / 200) + (%HI / 75)]

Where:

The values %LOW, %MED and %HI describe the length of longitudinal cracking of each severity as a percent of the section length. These values are 0 and can exceed 100.

%LOW = (Total linear feet WX measured low severity longitudinal cracking) / (Section length in linear feet) %MED = (Total linear feet WX measured medium severity longitudinal cracking) / (Section length in linear feet) %HI = (Total linear feet WX measured high severity longitudinal cracking) / (Section length in linear feet)

The denominators 350, 200, and 75 are the maximum allowable extents for the numerator value in the same units. For example, medium severity longitudinal cracking with a total length that is 200% of the length of the section would alone fail that section of road for this index.

The threshold for failure for this index is LC_INDEX = 60.

Low severity longitudinal cracks have a mean width ¼”, or are sealed cracks of indeterminate width whose sealant material is in good condition.

Medium severity longitudinal cracks have a mean width > ¼” and ¾”.

High severity longitudinal cracks have a mean width > ¾”.

10-3

Transverse Crack Index

TC_INDEX = 100 – {[20 * ((LOW / 15.1) + (MED / 7.5))] + [40 * (HI / 1.9)]}

The values LOW, MED and HI describe a count of the total number of transverse cracks of each severity level, where one transverse crack unit is equal to the WX measured lane width. These values are 0.

LOW = (Total linear feet WX measured low severity transverse cracking) / (WX measured lane width) MED = (Total linear feet WX measured medium severity transverse cracking) / (WX measured lane width) HI = (Total linear feet WX measured high severity transverse cracking) / (WX measured lane width)

The denominators 15.1, 7.5, and 1.9 are the maximum allowable extents for the numerator value in the same units. For example, high severity transverse cracking with a total length that amounts to 1.9 times the WX measured lane width would alone fail that section of road for this index.

The threshold for failure for this index is TC_INDEX = 60.

Low severity transverse cracks have a mean width ¼”, or are sealed cracks of indeterminate width whose sealant material is in good condition.

Medium severity transverse cracks have a mean width > ¼” and ¾”.

High severity transverse cracks have a mean width > ¾”.

Patching Index

PATCH_INDEX = 100 – 40 * (%PATCHING / 80)

The value %PATCHING describes the percent of the total WX measured area that is affected by patching.

This value ranges from 0 to 100.

%PATCHING = (Total area WX measured patching) / (Section length * WX measured lane width)

The denominator 80 is the maximum allowable extent for the numerator value in the same units. Patching totaling 80% or more of the measured section area fails a section of road for this index.

The threshold for failure for this index is PATCH_INDEX = 60.

There are no severity levels for patching.

Rutting Index

RUT_INDEX = 100 – 40 * [(%LOW / 160) + (%MED / 80) + (%HI / 40)]

10-4

10 ARAN rut depth measurements are taken per full .02 section for each of 2 wheel paths (left and right), resulting in a total of 20 measurements taken for both wheel paths. The values %LOW, %MED and %HI describe the number of ARAN rut depth measurements of both wheel paths in the section whose values are of each severity level, calculated as a percentage of the total number of ARAN rut depth measurements taken for a single wheel path in the section. These values range from 0 to 200.

%LOW = (Total number of ARAN measured low severity ruts in section for both wheel paths) / (Total number of ARAN rut measurements in section for a single wheel path) %MED = (Total number of ARAN measured medium severity ruts in section for both wheel paths) / (Total number of ARAN rut measurements in section for a single wheel path) %HI = (Total number of ARAN measured high severity ruts in section for both wheel paths) / (Total number of ARAN rut measurements in section for a single wheel path)

The denominators 160, 80, and 40 are the maximum allowable extents for the numerator value in the same units. For example, low severity ruts recorded in 16 of the 20 total readings (or 160% of a full wheel path’s worth of readings) for a full .02 section would fail that section for this index.

The threshold for failure for this index is RUT_INDEX = 60.

Ruts with an ARAN measured depth < 0.20” are not included in the distress calculations.

Low severity ruts have an ARAN measured depth 0.20” and 0.49”.

Medium severity ruts have an ARAN measured depth 0.50” and 0.99”.

High severity ruts have an ARAN measured depth 1.00”.

Roughness Condition Index

RCI = 32 * [5 * (2.718282 ^ (-0.0041 * AVG IRI))]

The value AVG IRI describes the average value of the Left IRI and Right IRI measurements for the section.

This value can range from approximately 40 to over 1000.

AVG IRI = (ARAN measured Left IRI + ARAN measured Right IRI) / 2

There is no applicable threshold for failure for this index.

NOTE: Collection of roughness data is dependent on the data collection vehicle traveling at a minimum speed of 12 mph. In the event that a route cannot be safely traveled at this minimum speed, and results in no roughness data, the SCR only will be calculated.

Surface Condition Rating Index

SCR = 100 - [(100 - AC_INDEX) + (100 - LC_INDEX) + (100 - TC_INDEX) + (100 - PATCH_INDEX)

+ (100 - RUT_INDEX)]

10-5

See above for determinations of AC_INDEX, LC_INDEX, TC_INDEX, PATCH_INDEX and

RUT_INDEX.

The threshold for failure for this index is SCR = 60.

Pavement Condition Rating Index Asphaltic Concrete Pavement (AS)

PCR = (0.60 * SCR) + (0.40 * RCI)

Where:

See above for determinations of SCR and RCI.

The values 0.60 and 0.40 function as weights within the formula.

If SCR equals zero (which means that the road surface condition is very poor), then the formula simply reduces to: PCR = 0.40 * RCI.

If RCI equals zero (which means that this value was not available for some reason), then the formula becomes: PCR = SCR.

The threshold for failure for this index is PCR = 60.

Pavement Condition Rating Index Portland Cement Concrete Pavement (CO)

Concrete PCR = -0.0012(IRI^2)+0.0499(IRI)+99.542

The threshold for failure for this index is PCR = 60.

Parking Lot and Manually Rated Road Condition Rating

Surface Condition Distresses- Chip Seal:

Raveling – loss of surface rock chips revealing previous surface Bleeding – asphalt or tar is bleeding through to the surface where surface looks slick with asphalt Rutting Potholes/Patching

Ratings - Chip Seal:

Excellent – None of the surface affected by the above (recently constructed) Good – Less than 10% of surface affected by the above Fair – Between 10% and 40% of surface affected by the above Poor – More than 40% of surface affected by the above

Surface Condition - Asphalt:

Cracking of any type Rutting Potholes/Patching

10-6

Ratings - Asphalt:

Excellent – None of the surface affected by the above (recently constructed) Good – Less than 10% of surface affected by the above Fair – Between 10% and 40% of surface affected by the above Poor – More than 40% of surface affected by the above

Index Values of Visual Ratings on Parking Lots and Manually Rated Roads

Under Construction 100

Excellent 97

Good 90

Fair 73

Poor 45

10-7

APPENDIX C: GENERAL INFORMATION ON RIP SYSTEMS

DMI (Distance Measuring Instrument) The DMI (Distance Measuring Instrument) obtains road length measurements that are highly accurate (to 0.001 miles). The DMI is connected to the outside of the rear wheel on the driver’s side, and is wired into the antilock braking system (ABS). The number of pulses recorded for each wheel rotation by the ABS is registered by the DMI, which transmits a measurement of distance traveled to the processing computers in the ARAN. The DMI distance measurements are the foundation to which all the other subsystems are tied.

Digital Image Information All images collected in Cycle 4 are digital images in .jpg format. These images provide adequate resolution for identifying sign and feature inventories and pavement evaluations. The images can be viewed with an interactive software program called VisiData. Each park will receive a copy of the VisiData program. Cycle 4 data, as well as Cycle 3 data, can be viewed using the Visi-Data software program. This program is a data presentation and analysis tool that can be accessed either at the individual park, park region or at NPS headquarters. The data is organized in a hierarchical manner and presented in tabular and graphical formats. The user is able to perform queries and drill down through the data to find the particular information they are looking for. Associated digital right-of-way images from either the LAN, USB port, individual DVD can be presented along with GPS locations.

Right-of-way (ROW) Video Three digital cameras are mounted above the vehicle’s windshield that point directly forward and slightly to the left and right. These cameras each collect one image every 0.002 miles (10.56 feet) in the primary-direction lane, to give a panoramic field-of-view of about 160 degrees. (Forward-facing video from the center camera only is collected in the opposite-direction lane of travel.)

If data collection speed exceeds 35-40 mph, the network and storage computers may become overwhelmed and may begin to drop individual video frames. Occasional common video quality issues include sun glare and rapid changes between sunlight and shadow. The camera system is equipped with auto risers that sometimes cannot adjust quickly enough to collect optimal video images.

FHWA ARAN CAMERA SPECIFICATIONS

Forward-Facing Cameras (ROW) Focal length 10 mm Chip size 8.71mm X 6.90mm Naming convention of each image chainage.jpg Image resolution 1300 X 1030 Image pixel size depends on distance Relative position of the GPS unit to each camera

2.104 meters from front-center rutbar to camera

The ARAN has a lever arm setting which tells the POS system where the center of the rutbar is with respect to the GPS antennas.

Pavement Video Pavement video images are collected by the data collection vehicle to use in later analysis to determine extents and severities of different types of pavement distress. The pavement in the primary-direction road lane is filmed continuously by two analog cameras attached to booms extended from the rear of the ARAN on the left and right sides. Strobe lights fire synchronously with the opening of the camera shutters to eliminate shadows and motion blur. The images from the two cameras overlap, and are stitched together in real time to create a continuous strip image of the pavement in the primary direction lane. This strip has a maximum width of 3.0 meters (actual width depends on pavement camera calibration) and is sectioned for ease of file management every 0.010 miles (52.8 feet).

10-8

The cameras both have a resolution of 640 x 480, making the threshold of visible pavement cracks about 3 mm.

Because the cameras are triggered by time and not distance traveled, this subsystem requires a minimum operating speed of 6 mph, otherwise images are taken on top of one another and result in checkered or black pavement video.

FHWA ARAN CAMERA SPECIFICATIONS

Pavement Cameras Image Pixel size 3.135 mm /side Image Resolution 640 X 480 Area that images cover 1.5 m X 1.2 m Full color or grayscale grayscale Vehicle speed limitations 80km/h Aperture setting Auto-iris Exposure setting 1/50000

FHWA ARAN GPS & Inertial System GPS is collected by a NovAtel MiLLenium, 12 channel, dual frequency L1/L2, DGPS ready receiver with a MiLLennium 502 GPS antenna. An OmniStar 3000 LR provides real-time differential correction. An Applanix POS/LV is the inertial system that fills in when GPS is unavailable. The antenna is mounted in the center of the roof, slightly toward the rear of the vehicle, but a lever arm is applied to place the operational location of GPS recording at the center of the rutbar on the front bumper of the vehicle. Expected accuracy under ideal conditions is sub meter.

GPS Collected on Manually Rated Routes Parking areas and roads that are not fully drivable with the ARAN data collection vehicle are collected manually by field technicians. GPS is collected for these routes using GPS field data collection utilizes Trimble ProXRS or ProXH Receivers matched with Trimble TSC1 or Ranger handheld Data Loggers, connected to Trimble Hurricane Antennas giving sub meter accuracy in ideal conditions. This collection equipment has varied as technology has improved over the years of RIP data collection. Some GPS files collected as early as 1998 have been verified for accuracy and perpetuated through the current cycle of data collection.

GPS SHAPEFILES

Type of Route and Collection Shape Filename

Roads driven by ARAN Line park_road_04.dbf/.shp/.shx Parking Areas Polygon park_pkg_04.dbf/.shp/.shx Roads Manually Rated as Lines (not in every park)

Line park_mrl_04.dbf/.shp/.shx

Roads Manually Rated as Polygons (not in every park)

Polygon park_mrp_04.dbf/.shp/.shx

• Datum for all GPS shapefiles is LL_WGS84_DD (Latitude Longitude _World Geodetic Survey 1984_Decimal Degrees)

• In filename, “park” is NPS four-letter alphabetic code.

• The source for route data required for data processing and report production is the PARK_RouteInfo.mdb.

10-9

Condition Photos Taken of Manually Rated Roads One or more digital photos are taken by Canon Power Shot G2 4.0 Mega Pixel digital camera for each manually rated route in a National Park. They are stored in .jpg format named with the four-letter NPS park alphabetic code, route number, and the photo number assigned by the camera. For example, YOSE_0900_4434.jpg is the filename of the photo named 4434 by the camera that was taken of Yosemite National Park route 0900.

Scenic Photos Scenic photos are taken by Canon Power Shot G2 4.0 Mega Pixel digital camera throughout each park and are named with the four-letter NPS park alphabetic code and the count of the photo taken in that park. For example, GRCA003.jpg is the filename of the third scenic photo taken in Grand Canyon National Park. The number of scenic photos provided will vary between parks.

10-10

APPENDIX D: METADATA

FHWA – NPS Road Inventory Program Cycle 4 Metadata

The purpose of these sheets is to provide users of the Road Inventory Program’s data with data accuracies and tolerances to help users define ways in which the RIP data can and cannot be used. For further information on specifics of data collection equipment, data collection procedures, equipment calibrations, or quality control/quality assurance procedures, please contact Jim Kennedy, Project Manager, Data Quality Assurance, at 720-963-3560 or jim.kennedy@fhwa.dot.gov.

All Road Inventory Program data undergoes quality control and quality assurance testing. This document represents the known data accuracies and tolerances for the data collection equipment, data collection procedures, and data processing procedures currently in use. Many additional tests conducted on the park databases during the quality assurance phase to ensure data integrity are not listed as a part of this document. Before it is delivered, a park database undergoes a large set of table design consistency, field data format consistency, data completeness, uniqueness of key fields, data reasonableness, acceptable data range, within-field data consistency, between-field data consistency, and between-table data consistency tests. Additional data sampling checks are conducted to ensure proper data upload from raw files into the park database and to quality check the pavement crack analysis. Further information is detailed in the FHWA – NPS RIP Quality Assurance Manual, available upon request.

This description of metadata includes only the known accuracies with which a data field matches its expected value.

The tables that follow this page show each database field’s:

Field – field name Format – data type and number of characters of field Expected Value – meaning of value assigned to field Source – when in process field value obtained Validation – how field value obtained Expected Accuracy – accuracy with which contents of field match Expected Value

Verifying and continually improving the accuracy of Road Inventory Program data is an ongoing goal of the Federal Highway Administration and the National Park Service. Field testing and post-collection analysis of ARAN (Automatic Road ANalyzer) -collected data will continue in Cycle 4. Data quality is expected to improve as the FHWA – NPS Road Inventory Program continues to operate, due to the fact that future data collection cycles will consist in large part of data updates. Also, technological improvements are expected to render the data increasingly consistent with actual roadway conditions as data collection cycles progress.

Specific Caveats

MUTCD based on contents & colors of sign, not on size Database records that show a Portland Cement Concrete (CO) surface type sometimes include distress index values that seem to…