Downtown Transportation Concurrency

KAI led a year-long effort to update the City of Vancouver’s transportation concurrency policy and development review process for the downtown Vancouver City Center Vision Plan area. Key activities included:

  • Assessment of the existing concurrency modeling process, including opportunities and constraints from both a public and private development perspective.
  • Preparation of a literature review and case studies of transportation concurrency modeling used in other similar circumstances nationwide. The case studies assessed when each system was created, who administers the system, the system methodology and process, advantages and disadvantages with the system from the ad-ministering agency perspective, and known system issues.
  • Reviewed the white paper, system needs, suggested revisions, opportunities, and constraints through two roundtable discussions: 1) A gathering of City and County transportation agency staff as well as local traffic engineering practitioners representing the private development sector; and 2) A gathering of City legal staff and local land use attorneys representing the private development sector.
  • Preparation of a report recommending revisions to the City’s transportation concurrency modeling process and policy.
  • Preparation of proposed amendments to the City’s Municipal Code (VMC 11.95) to implement the recommended changes.
  • Preparation of a literature review presenting a state-of-the-practice assessment of internal trip making at mixed-use developments. This effort in turn led to preparation of an internal trip calculator tool calibrated with local census data, the COMMUTER and TRIMMS models, and reflective of different levels of transportation demand management techniques. The calculator is being developed as a tool to allow for review of simple and complex development projects within the downtown planning area. The municipal code changes and concurrency updates were adopted in late 2012.