Preliminary Traffic Plans

Preliminary Traffic Plans Requirements

Show all proposed improvements in accordance with the Transportation Design Manual and Complete Streets Guide | City of Bellevue.

All traffic plans shall be prepared by a professional engineer, licensed in Washington State, with relevant roadway, street lighting and traffic signals design experience.

The Design engineer is responsible for verifying and accurately depicting all locations and dimensions of property lines; setback distances; and the location and width of streets, right-of-way and easements, and to verify that all proposed improvements are within right-of-way or easements.

All construction and general notes, and details must be included on the plan sheets described below.

Channelization and Signing Plans

Show all proposed channelization for motorized and non-motorized facilities.
Show proposed sign removals, new signs, sign relocations and replacements.
Show median barriers, C-curbs, traffic islands and guardrails on channelization plans.
Label dimensions of proposed channelization.

Traffic Signal Plans

Include existing traffic signal plan overlaying proposed improvements – Show ADA and MUTCD compliance.
Include preliminary traffic signal design with proposed signal pole foundation depth.
If applicable, include proposed design of Rectangular Rapid Flashing Beacon (RRFB) system.

Preliminary Street Lighting, Fiber Optic, and Small Wireless Facilities (SWF) Plans

Street Lighting

For Street Lighting requirements, refer the COB Design Manual Appendix A [RK1] – Street Lighting Design Guide.
Show the location(s) and type of pole and fixture for all lights included in the analysis. Also include all relevant features on this plan sheet, including but not limited to above and below ground utilities, building awnings/overhangs, below grade garage limits, street trees, crosswalks, driveways, etc.
Show the preliminary street lighting proposed design including an illumination pole schedule.
Where the city owns or will own the street lighting system (generally on arterial streets or downtown), the Preliminary Street Lighting Plan must be submitted by a Washington State-registered civil or electrical engineer experienced in street lighting design, at the developer’s request and expense.
Where Puget Sound Energy (PSE) owns or will own the street lighting system (generally on local streets), the Preliminary Street Lighting Plan must be submitted to the city by PSE at the developer’s request and expense.

Fiber Optic

For Fiber Optic Design requirements, refer to COB Design Manual Appendix C.

Small Wireless Facilities

Identify existing Small Wireless Facilities along the project frontage. Refer to the SWF Applications Filed and Reservations at Small Wireless Facility Permit | City of Bellevue.

Photometric Calculations Plan

Provide a street light level analysis using AGi32 software to determine optimal street light locations that meet the city’s standards.
Submit a digital AGi32 file for review. Email the file to the assigned transportation development review engineer.
Include illumination design criteria, and a calculation summary table showing the target and actual minimum average maintained light levels and maximum uniformity ratio for each calculation area.