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City of Bellevue, WA Transportation
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  6. Transportation Codes

    Permits and Standards

    • Frequently Asked Questions
    • Right of Way
    • Transportation Codes
    • Transportation Design Manual
      • Transportation Design Manual Drawings
    • Transportation Impact Fees

    Transportation Codes

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    The City of Bellevue has a variety of transportation-related codes and laws which include information on a variety of issues, from driveways to traffic signals to street lighting. These codes are found primarily in Title 14.60 of the Bellevue City Code, the Transportation Development Code; Title 14.10, the Multimodal Concurrency Code; Title 22.16, the Transportation Impact Fee Program and Title 14.30, the Right of Way Use Code .

    Multimodal Concurrency Code

    The new Multimodal Concurrency Code (BCC 14.10) was adopted by council in July 2022. On Sept. 16, 2022, the Multimodal Concurrency Code Implementation Guide was approved by the Transportation Director. This approval was followed by a 30-day transition period; the code went into effect on Oct. 17, 2022.

    Concurrency is a required component of the state Growth Management Act. It requires that transportation improvements strategies to accommodate the impacts of development be made at the same time — or concurrent with— the development. A concurrency determination is required for all development projects that could create additional demand and need for transportation system improvements. This includes new construction, expansion, or a change in use for which a permit or approval is required. Prior to the implementation of the Multimodal Concurrency Code, concurrency in Bellevue was regulated by the Traffic Standards Code. The new system in the Multimodal Concurrency Code uses the supply and demand of Mobility Units to determine if concurrency requirements are met. 

    For more information on how Mobility Units are calculated, application of the new code to development projects; please read the Implementation Guide.

    • Multimodal Concurrency Implementation Guide
    • Concurrency Application form
    • Performance Management Areas map

    Transportation Impact Analysis

    Transportation Impact Analysis (TIA) reports are required for all development projects. A TIA is a study of the potential traffic impacts of a development on the surrounding transportation system. The purpose of the study is to document the impacts and recommend on-site and off-site mitigation for those impacts. A TIA is required to accompany a land use permit submittal. For more information, refer to the TIA Guidelines.

    Development Review Traffic Modeling

    Based on findings from the trip generation estimates for a project, operational modeling may be required. Any project generating 50 or more PM Peak hour vehicle trips will be required to conduct a traffic modeling run and document operations analysis in the TIA. The transportation reviewer also has the discretion to require traffic modeling for any project regardless of the number of PM peak hour trips due to the unique nature of the site, access changes, site-specific conditions, etc. Work with your transportation reviewer for assistance on the Development Review Modeling Request form.

     

    Contact

    Development Review

    Email transportationdevrev@bellevuewa.gov

    Molly Johnson
    Development Review Manager, Transportation Department

    Telephone
    425-452-6175

    Email
    majohnson@bellevuewa.gov

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