FDOT Standard Plans Index 102-655: Traffic Pacing

Design Criteria

Design Criteria FDOT Design Manual ( FDM ) , FDM 240 and 242

Design Assumptions and Limitations

Design Assumptions and Limitations Traffic pacing is a temporary traffic control technique to allow short duration work operations by pacing traffic at a slow speed upstream of the work zone. This technique is frequently used for installing overhead sign structures and utility crossings, replacing sign panels, setting bridge beams, and moving large vehicles/equipment across the roadway. Index 102-655 provides the minimum requirements for traffic pacing operations on the State Highway System.

See FDM 240 and FDM 242 and the FDOT ‘ Traffic Pacing ' Excel Program for additional information and assistance the preparation of the Traffic Pacing Report. The program is located the Department’s temporary traffic control resources web page: TTC Resource Download Library . Evaluate the actual distance required for the pacing operation based on site specific features including roadway geometrics, pacing speeds, regulatory speeds, interchange spacing, work duration, availability of traffic control officers, traffic volumes and maximum queue length.

Consider the speed of the pacing vehicles, the location of entrance ramps, horizontal and vertical alignment of the facility when designating the starting point of the traffic pacing operation. Refer to Index 102-100 , if temporary barrier wall is required to protect pre-positioned and assembled materials in the right-of-way. Assume the following number of traffic control officers for each location and function in the table below.

No. of Traffic Control Officers Function Location 1 (min.) Supervisor Work Area 1 Lead vehicle Mobile Operation 1 (per travel lane) Pacing Operation Mobile Operation 1 Advanced Warning to Motorist Stationed at the Beginning of Pacing Operation 1 (per entrance ramp) Entrance Ramp Roadblocks Each of the entrance ramps upstream of the work area Index 102 - 655 Traffic Pacing See the Example below for the initiation and execution of a pacing operation for one direction of a four-lane divided roadway.

Payment

Payment Item number Item Description Unit Measure 102- 14- Traffic Control Officer HR See the BOE and Specifications 102 for additional information on payment, pay item use and compensation. Index 102 - 655 Traffic Pacing Example: ( Mainline Pacing Details for One Direction of a Four-lane Divided Roadway ) Index 102 - 655 Traffic Pacing Index 102 - 655 Traffic Pacing

What your plans must show

Plan Content Requirements for this index — the SPI's checklist for designers.

• Develop a site-specific Traffic Control Plan for each pacing operation location. Specify the activities, locations, and times when pacing will be allowed. Show the minimum number of traffic control officers needed for each function and location of the pacing operation. Specify if there are work activities that must be completed prior to the contractor starting the work anticipated during the pacing operation. Show the number and location of portable changeable message signs (PCMS). Designate the last safe exist (egress) location prior to pacing operation that traffic may use the avoid the operation.