attachment_2_RFP DOIT 2025-036.pdf

STATE OF NEW HAMPSHIRE

DEPARTMENT OF TRANSPORTATION

RFP DoIT 2025-036 PROCUREMENT FOR STATEWIDE

TRAFFIC DATA MANAGEMENT SYSTEM (TDMS)

APPENDIX B SUPPLEMENTAL

Appendix B-1.1.1

USE CASES

1. Summary

The purpose of this Appendix is to define the Use Cases of the Proposed Solu�on.

2. Use Cases

There are 12 use cases that describe the several business func�ons of the proposed Statewide

TDMS. These use cases are shown graphically on the following pages:

• Administra�on/Other

• Planning

• Design

• Opera�ons

• Maintenance

• Safety

• Sta�s�cs

• Finance

• Engineering Economics

• Environmental Analysis

• Legisla�on

• Private Sector

Use Cases Business Function: Administration / Other File Format:.xls, .pdf

Enforcement: Use monthly, day of the week and hourly weight and speed data to identify trends in overweight vehicles and potential speeding corridors.

(Using weight and speed data types)

Performance Measurement: Use AADT, 24-hour volumes, hourly volumes, class data, and hourly speeds to calculate LOS for roadways.

(Using volume, classification and speed data types)

Resource Allocation: Use volume data to calculate Vehicle Miles Traveled (VMT) to assist in resource allocation.

(Using volume data types)

Emergency Operations: Use AADT, classification and Speed to inform decisions of traffic re-routing and to assist in other decisions during emergencies.

(Using volume, classification and speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Department of Safety

Traffic

Planning

Homeland Security and Emergency

Management

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations

Short Term Count Stations

Business Function: Planning (1 of 2) File Formats: .csv, .xls, .pdf

Forecasts of Travel by Vehicle Type: Use AADT and classification data to estimate and forecast future traffic volume by class from past volume and class data.

(Using volume and classification data types)

HPMS: Use statewide traffic data to submit Highway Performance Monitoring System (HPMS) reports to FHWA.

Location and Design of Highway Systems: Use AADT and classification data to prioritize capacity enhancements and highway capital improvements based on current traffic volume and class.

(Using volume and classification data types)

Assignment/Change of Federal Functional Classification: Use AADT, hourly volumes, 15-minute intervals, classification, and hourly speeds to determine if a highway segment needs to be reclassified.

(Using volume, classification, and speed data types)

Prioritizing Projects: Use AADT, 24-hour volumes, and hourly volumes to help the decision process of project prioritization.

(Using volume data types)

Freight: Use classification and weight data for Federal Reporting purposes as well as optimizing freight networks and rationalizing new construction.

(Using classification and weight data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Traffic

Planning

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations

Business Function: Planning (2 of 2) File Formats: .xls, .pdf

Truck Lanes: Use AADT, hourly volumes, 15-minute intervals, classification, and hourly speed data to determine the truck percentage and if truck lanes are needed.

(Using volume, classification and speed data types)

Truck Ramps: Use AADT and classification data to determine if there is adequate truck volume to trigger a need for a truck ramp.

(Using classification and speed data types)

Congestion Measurement Systems: Use AADT, classification, and speed data to evaluate deployed systems to understand the benefits.

(Using volume, classification, and speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Highway Design

Continuous Counting Stations

Classification Counting Stations

Short Term

Planning

Business Function: Design File Formats: .csv, .xls, .pdf

Highway Geometry: Use AADT, 24-hour volumes, and 15-minute intervals to determine design speed and determine guardrail needs.

(Using volume, classification, micromobility and speed types)

Bridge Design: Use AADT, hourly volumes, classification, and average weight to help calculate bridge loading.

(Using volume, classification and weight types)

Pavement Design: Use AADT, hourly volumes, classification, and average weight data to assist in select material design and pavement design.

(Using volume, classification and weight types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Highway Design

Bridge Design

Research and Materials

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations

Business Function: Operations File Formats: .xls, .pdf, .csv

Work Zone Management: Using hourly volumes to maximize work windows for construction

(Using volume data types)

Signal Timing: Use 15-minute intervals volume and pedestrian volumes to determine peak demand periods for signal timing.

(Using volume and micromobility data types)

Development of Control Strategies: Use AADT, hourly volumes, 15-minute intervals, classification data, and hourly speeds to determine countermeasure implementation locations.

(Using volume, classification and speed data types)

Setting Speed Limits and Speed by Class: Use classification, and hourly speeds to determine speed metrics to help inform decisions for safe posted speed limits.

(Using classification and speed data types)

Traveler Information Emergency Evaluation:

Use AADT, classification, and speed data for traffic re-routing and decision making (Using volume and classification data types)

Traveler Information: Use speed and volume data for after-action reporting.

(Using volume and speed data types)

Freight: Use AADT, classification, weight, and speed data to inform decisions for traffic re-routing.

(Using volume, classification, weight and speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Department of Safety

Traffic

Front Office

Transportation Systems and Management Operations

(TSMO)

Operations

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations

Business Function: Maintenance File Formats: .pdf, .xls, .csv

Selecting Timing of Maintenance for Lane Closure Policies: Use 15-minute interval volume data to determine time windows where lane closures would cause the least disturbance to traffic.

(Using volume data types)

Work Zone Safety Measures: Use AADT, hourly volumes, and hourly speeds to determine what work zone traffic control and devices need to be deployed.

(Using volume and speed data types)

Bridge Management: Use AADT, hourly volumes, classification, and average weight data to view the usage (volume, weight and class) of vehicles crossing the bridge.

(Using volume, classification and weight data types)

Pavement Management: Use AADT, hourly volumes, classification, and average weight to calculate the axle loading on the pavement surface.

(Using volume, classification and weight types)

Selection of Maintenance Activities: Use volume, classification, and weight data to calculate equivalent single axle loads (ESAL) on a specific roadway to assist in pavement maintenance planning.

(Using volume, classification and weight types)

Highway Striping Reconfiguration: Use AADT and speed data to determine adequate highway striping layouts.

(Using volume and speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Traffic

Bridge Design

Research and Materials

Construction

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations

Business Function: Safety File Formats: .pdf, .xls, .csv

Design of Traffic Control Systems: Use AADT and peak hour traffic volumes to assist in signal warrant analysis.

(Using volume, micromobility and speed data types)

Design of Safety Systems: Calculate via AADT and speed to design safer roadways.

(Using volume, micromobility and speed data types)

Safety Conflicts Due to Vehicle Mix and Crash Rates: Use AADT, hourly volumes, 15-minute interval volumes, and classification data to analyze the effects of vehicle mix on crash rate.

(Using volume and classification data types)

Safety Analysis: Use AADT and speed data to identify roads with high speeds that can be flagged as dangerous.

(Using volume, micromobility and speed data types)

Weight Limits and Regulations: Use classification data and weight data to determine weight restriction postings of certain roadways.

(Using classification and weight data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Safety Section

Traffic

Highway Design

Research and Materials

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations

Business Function: Statistics File Formats: .xls, .csv

Annual Average Daily Traffic (AADT): Use daily and hourly volumes to calculate AADT to measure long-term trends or changes in travel patterns.

(Using volume data types)

Vehicle Miles Traveled (VMT): Use AADT to calculate VMT for planning purposes.

(Using volume data types)

Travel by Vehicle Type: Use AADT and classification data to calculate estimations of miles traveled by vehicle type for long range planning purposes.

(Using volume and classification data types)

Average Weight by Vehicle Class: Use classification data and weight data to calculate the average weight by vehicle class to be used in pavement and bridge design.

(Using classification and weight data types)

85th Percentile: Use hourly speed data to calculate the 85th percentile speeds of a corridor. 85th percentile speed is used to determine speed limits and has other planning uses.

(Using speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Planning

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations

Business Function: Finance File Formats: .xls, .csv

Estimates of Highway Revenue and Toll Revenue: Use 24-hour volumes and classification to estimate toll revenue.

(Using volume and classification data types)

User Travel Time Costs: Use 24-hour volumes in 15-minute intervals and speeds in 15-min intervals to determine costs associated with delay.

(Using volume and speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Front Office

TSMO

Turnpikes Continuous

Counting Stations

Classification Counting Stations

Business Function: Engineering Economics File Formats: .xls, .pdf, .csv

Benefit of Highway Improvements: Use AADT, 24-hour volumes, hourly volumes, and hourly speeds to show changes in LOS and show changes in speeds and or volumes.

(Using volume and speed data types)

User Delay Costs: Use 24-hour volumes, 15-minute intervals, and 15-min speed intervals to calculate the cost associated with delays on state highways.

(Using volume and speed data types)

Cost of Vehicle Operation: Use AADT, classification, and speed data to find how much it costs for users to drive on the road.

(Using volume, classification and speed data types)

Benefit of Truck Climbing Lane: Use AADT and truck percentage to calculate changes in speed and volume with the addition of a truck climbing lane.

(Using volume, classification and speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Project Development

Front Office

TSMO

Highway Design

Continuous Counting Stations

Classification Counting Stations

Business Function: Environmental Analysis File Formats: .xls, .pdf, .csv

Air Quality Analysis: Use 24-hour volumes and classification data to calculate estimates of air pollution emitted from traffic.

(Using volume and classification data types)

Noise Impact Analysis: Use 24-hour volumes and classification data to estimate noise pollution emitted from the traffic (Using volume and classification data types)

Forecasts of Emissions by Type of Vehicle:

Use 24-hour volumes and classification to calculate forecasts of emissions by vehicle type (Using volume and classification data types)

Emissions by Type of Vehicle: Use 24-hour volumes and classification data to calculate estimated emission values by vehicle type

(Using volume and classification data types)

Project-Level Analyses: Use 24-hour volumes and classification data for environmental analysis of specific projects.

(Using volume, classification, and speed data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Department of Environmental Services (DES)

Continuous Counting Stations

Classification Counting Stations

Business Function: Legislation File Formats: .pdf, .xls, .csv

Oversize Vehicle Policy: Use weight and classification data to determine the demand of oversize and overweight vehicle use of the roadway and inform oversize and overweight vehicle policy.

(Using classification and weight data types)

Speed Limits: Use speed data to calculate speed study metrics to determine if speed limits in place are reasonable.

(Using speed data types)

Selection of Highway Routes: Use AADT and classification data for route rationalization.

(Using volume and classification data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Planning

Department of Safety

Traffic

Highway Design

Continuous Counting Stations

Classification Counting Stations

Business Function: Private Sector File Formats: .xls, .pdf, .csv

Development Planning: Use AADT, hourly volumes, 15-minute interval volumes, classification data, and hourly speeds to calculate volume of visitors for private developments.

(Using volume, classification and speed data types)

Marketing Keyed to Particular Vehicle Types:

Use AADT, hourly volumes, 15-minute interval volumes, and classification data to calculate the number of potential visitors to specific developments.

(Using volume and classification data types)

Trends in Freight Movement: Use AADT, hourly volumes, 15-minute interval volumes, and classification data to calculate and track trends in certain vehicle classes and assist overheight and overweight permitting.

(Using volume and classification data types)

Location of Service Areas: Use AADT, classification, and speed data to plan travel routes, stopping locations and travel times.

(Using volume, classification, and speed data types)

Business Loans: Use AADT to assist securing loan funding for private development.

(Using volume data types)

Stakeholder EquipmentTraffic Data Management System

(TDMS)

Private

Weigh-in- Motion

Continuous Counting Stations

Classification Counting Stations