Rock Creek Revised IRSC Traffic Control Plan.pdf

Traffic Control Plan Required for Integrated Resource Service Contracts

Contractor shall furnish, install, and maintain all temporary traffic controls (TTC) which provide the user with adequate warning of hazardous or potentially hazardous conditions, associated with the Contractor/Purchaser operations. The following are specific requirements that must be met on this contract during all phases of operations for road construction or maintenance as well as logging.

1. All required warning signs are to meet specifications as outlined in the "2012 CA Manual on Uniform Traffic

Control Devices for Street and Highways" (see Attachments). For all contract related activities, this means:

a. All signs shall have an orange retro-reflective background with black letters.

b. Signs shall be diamond shaped and be a minimum of 30 " X 30" in size, (see Item #9 below.)

c. Lettering shall be a minimum of 4 inches in height, (larger lettering for larger signs.)

d. Letters are to be stencil painted or press-on and not hand-written.

e. Signs must be Retro-reflective or Illuminated if any TTC is in place for more than one daylight period.

f. TTC zone signs used at night shall maintain retro-reflectivity at or above the minimum levels shown on

Table 2A-3 in the manual.

2. Truck warning signs shall be posted on all roads that give access to the public onto the haul route. These signs shall be posted prior to usage by the trucks.

3. Equipment working or road construction signs shall also be posted as stipulated in item 2 above for road construction or maintenance.

4. When falling operations are occurring, signs shall be posted at both ends of the area being worked. Any time a tree is being felled that could reach the roadway, either a flagman shall regulate traffic or the road shall be blocked until the tree is on the ground. All debris will be removed from roadway.

5. All signs shall be moved and placed in the current areas of operation. They shall not be left posted in areas of no activity unless they are covered during the periods of inactivity.

6. All warning signs shall be posted in highly visible locations and at a height easily seen by motorist. At times, this may mean that signposts will be necessary.

7. All warning signs shall be posted prior to the beginning of any operation.

8. All KO roads are to be continuously kept open unless otherwise agreed in writing.

9. Sign size is dictated by traffic volume and speed. A 30"x30" sign may be used on low traffic volume of < 400 vehicles per day with maxi mum speed of 35 MPH. A 36"x36" sign will be used on conventional road where traffic volume is >400 vehicles with speed greater than 35 MPH. Highway/Freeway sign size will be 48"x48"for speeds greater than 45 MPH.

10. On the attached sign drawings, the ''Text 4C" represents 4inch tall text with a C stroke width. The stroke width for C series is 31/64". The Standard Highway Sign book contains other series sizes.

California MUTCD 2012 Edition Page 1119 (FHWA’s MUTCD 2009 Edition, as amended for use in California)

CHAPTER 6G. TYPE OF TEMPORARY TRAFFIC CONTROL ZONE ACTIVITIES

Section 6G.01 Typical Applications Support:

01 Each TTC zone is different. Many variables, such as location of work, highway type, geometrics, vertical and horizontal alignment, intersections, interchanges, road user volumes, road vehicle mix (buses, trucks, and cars), and road user speeds affect the needs of each zone. The goal of TTC in work zones is safety with minimum disruption to road users. The key factor in promoting TTC zone safety is proper judgment.

02 Typical applications (TAs) of TTC zones are organized according to duration, location, type of work, and highway type. Table 6H-1 is an index of these typical applications. These typical applications include the use of various TTC methods, but do not include a layout for every conceivable work situation.

03 Well-designed TTC plans for planned special events will likely be developed from a combination of treatments from several of the typical applications.

Guidance:

04 For any planned special event that will have an impact on the traffic on any street or highway, a TTC plan should be developed in conjunction with and be approved by the agency or agencies that have jurisdiction over the affected roadways.

05 Typical applications should be altered, when necessary, to fit the conditions of a particular TTC zone.

Option:

06 Other devices may be added to supplement the devices shown in the typical applications, while others may be deleted. The sign spacings and taper lengths may be increased to provide additional time or space for driver response.

Support:

07 Decisions regarding the selection of the most appropriate typical application to use as a guide for a specific

TTC zone require an understanding of each situation. Although there are many ways of categorizing TTC zone applications, the four factors mentioned earlier (work duration, work location, work type, and highway type) are used to characterize the typical applications illustrated in Chapter 6H.

Section 6G.02 Work Duration Support:

01 Work duration is a major factor in determining the number and types of devices used in TTC zones. The duration of a TTC zone is defined relative to the length of time a work operation occupies a spot location.

Standard:

02 The five categories of work duration and their time at a location shall be:

A. Long-term stationary is work that occupies a location more than 3 days.

B. Intermediate-term stationary is work that occupies a location more than one daylight period up to 3 days, or nighttime work lasting more than 1 hour.

C. Short-term stationary is daytime work that occupies a location for more than 1 hour within a single daylight period.

D. Short duration is work that occupies a location up to 1 hour.

E. Mobile is work that moves intermittently or continuously.

Support:

03 At long-term stationary TTC zones, there is ample time to install and realize benefits from the full range of

TTC procedures and devices that are available for use. Generally, larger channelizing devices, temporary roadways, and temporary traffic barriers are used.

Standard:

04 Since long-term operations extend into nighttime, retroreflective and/or illuminated devices shall be used in long-term stationary TTC zones.

Guidance:

05 Inappropriate markings in long-term stationary TTC zones should be removed and replaced with temporary markings.

Chapter 6G – Type of Temporary Traffic Control Zone Activities January 13, 2012

Part 6 – Temporary Traffic Control

Temporary Traffic Control (Parts 1 & 6) Page 177 of 320

California MUTCD 2012 Edition Page 1120 (FHWA’s MUTCD 2009 Edition, as amended for use in California)

Support:

06 In intermediate-term stationary TTC zones, it might not be feasible or practical to use procedures or devices that would be desirable for long-term stationary TTC zones, such as altered pavement markings, temporary traffic barriers, and temporary roadways. The increased time to place and remove these devices in some cases could significantly lengthen the project, thus increasing exposure time.

Standard:

07 Since intermediate-term operations extend into nighttime, retroreflective and/or illuminated devices shall be used in intermediate-term stationary TTC zones.

Support:

08 Most maintenance and utility operations are short-term stationary work.

09 As compared to stationary operations, mobile and short-duration operations are activities that might involve different treatments. Devices having greater mobility might be necessary such as signs mounted on trucks.

Devices that are larger, more imposing, or more visible can be used effectively and economically. The mobility of the TTC zone is important.

Guidance:

10 Safety in short-duration or mobile operations should not be compromised by using fewer devices simply because the operation will frequently change its location.

Option:

11 Appropriately colored or marked vehicles with high-intensity rotating, flashing, oscillating, or strobe lights may be used in place of signs and channelizing devices for short-duration or mobile operations. These vehicles may be augmented with signs or arrow boards.

Support:

12 During short-duration work, it often takes longer to set up and remove the TTC zone than to perform the work. Workers face hazards in setting up and taking down the TTC zone. Also, since the work time is short, delays affecting road users are significantly increased when additional devices are installed and removed.

Option:

13 Considering these factors, simplified control procedures may be warranted for short-duration work. A reduction in the number of devices may be offset by the use of other more dominant devices such as high-intensity rotating, flashing, oscillating, or strobe lights on work vehicles.

Support:

14 Mobile operations often involve frequent short stops for activities such as litter cleanup, pothole patching, or utility operations, and are similar to short-duration operations.

Guidance:

15 Warning signs and high-intensity rotating, flashing, oscillating, or strobe lights should be used on the vehicles that are participating in the mobile work.

Option:

16 Flags and/or channelizing devices may additionally be used and moved periodically to keep them near the mobile work area.

17 Flaggers may be used for mobile operations that often involve frequent short stops.

Support:

18 Mobile operations also include work activities where workers and equipment move along the road without stopping, usually at slow speeds. The advance warning area moves with the work area.

Guidance:

19 When mobile operations are being performed, a shadow vehicle equipped with an arrow board or a sign should follow the work vehicle, especially when vehicular traffic speeds or volumes are high. Where feasible, warning signs should be placed along the roadway and moved periodically as work progresses.

20 Under high-volume conditions, consideration should be given to scheduling mobile operations work during off-peak hours.

21 If there are mobile operations on a high-speed travel lane of a multi-lane divided highway, arrow boards and/or Portable Changeable Message Signs should be used.

Chapter 6G – Type of Temporary Traffic Control Zone Activities January 13, 2012

Part 6 – Temporary Traffic Control

Temporary Traffic Control (Parts 1 & 6) Page 178 of 320

.OVEMBER 2012

Text layout—7ARNING SIGN (&7) (2-LINE)

Dimensions (inches)

Sign

Number

Message

L

A

Spacing

Text

(upper case)

Border

Inset

&711-10A LOGGING

/0%2!4)/.3

30 2 2 4C d s

36 3 5# d s

&711-10B LOG

425#+3

30 2 2 6D d s

36 3 7$ d s

Notes

Center text on vertical and horizontal centerlines.

4EXTˆ!3! 3ERIES AS NOTED.

For larger sizes, refer to the “Standard Highway Signs” book.

Colors

Black legend and border.

2ETROREFLECTIVE ORANGE BACKGROUND.

References

For sign guidelines, see chapter 4, section 4.6.2.

&OR MANUFACTURING SPECIFICATIONS, SEE CHAPTERS 14 AND 14!.

Chapter 4B Temporary Traffic Control Sign Drawings

3 I G N A N D 0 O S T E R ' U I D E L I N E S F O R T H E & O R E S T 3 E R V I C E s % - 7 1 0 0 - 1 5 4B-1

LOG

TRUCKS

A

FW11-10b

LOGGING

OPERATIONS

FW11-10a

Text layout—7ARNING SIGN (&7) (3-LINE)

Spacing

Text

(upper case)

Border

&711-10D (%!69 425#+

42!&&)#

Center text on vertical and horizontal centerlines.

For sign guidelines, see chapter 4, section 4.6.3.

&OR MANUFACTURING SPECIFICATIONS, SEE CHAPTERS 14 AND 14!.

Chapter 4B Temporary Traffic Control Sign Drawings

4B-2 3 I G N A N D 0 O S T E R ' U I D E L I N E S F O R T H E & O R E S T 3 E R V I C E s % - 7 1 0 0 - 1 5

A

HEAVY

TRUCK

TRAFFIC

FW11-10d

Text layout—7ARNING SIGN (&7) (4-LINE)

Spacing

Text

(upper case)

&711-10C ,/' 425#+3

%.4%2).' 2/!$

Center text on vertical and horizontal centerline.

For sign guidelines, see chapter 4, section 4.6.2.

&OR MANUFACTURING SPECIFICATIONS, SEE CHAPTERS 14 AND 14!.

Chapter 4B Temporary Traffic Control Sign Drawings

3 I G N A N D 0 O S T E R ' U I D E L I N E S F O R T H E & O R E S T 3 E R V I C E s % - 7 1 0 0 - 1 5 4B-3

LOG

TRUCKS

ENTERING

ROAD

FW11-10c