Ordinance 2425-99 - Laserfiche WebLink

3. If a project will generate new traffic for more than 6 years,the horizon year shall be the planning horizon for the land use and transportation elements in the comprehensive plan that is in effect at the time of the complete application(i.e.,the years remaining between the time of the complete application and the end of the planning horizon used for the adopted comprehensive plan). 4. For any project, the City Engineer may make a case-by-case determination of the horizon year, including extension of the horizon year for projects that are built in phases or designed to be built over a number of years. 7.3. Base traffic and growth factor. The base traffic for the traffic analysis shall include existing traffic plus traffic generated by any project in the study area that has been previously reviewed under SEPA, any proposed project currently under review by the City, and any additional traffic reasonably foreseeable as deemed appropriate by the City Engineer. This additional traffic may include trips generated in other jurisdictions. The applicant may request to use a specific growth factor if the applicant can demonstrate with analysis that such a growth factor is appropriate for the project location and is not inconsistent with the comprehensive plan (including SEPA or other traffic analyses supporting the comprehensive plan). The City Engineer may require that a different background growth factor be used when site specific information supports a different factor. Where there is no area specific information, a four (4) percent background growth factor compounded annually shall be used to project the existing traffic to the required horizon year. 7.4. Trip generation and distribution. The traffic analysis shall assign and distribute the proposed project's peak hour trips down to and including the minimum threshold level of 50 new project-generated peak hour trips. Unless otherwise required or approved by the City Engineer, trip generation rates shall conform to the latest edition (approved by the City Engineer) of Institute of Transportation Engineers (ITE) Trip Generation Manual. Where proposed traffic or transportation impacts are not predominantly automobile (for example, trucks, trailers, rail, air or waterborne traffic), the analysis shall identify the type of traffic and mode split in the generation and distribution analysis. Directional distribution shall be determined in consultation with the City Engineer. For large projects or in areas experiencing substantial development activity, the City Engineer may require directional distribution and trip assignment to be performed using computerized model. 7.5. Level of service. The method for analyzing the Level of Service when required (see section 9 of this ordinance) shall be the current edition of the Transportation Research Board Highway Capacity Manual and its related computer software, or a method otherwise approved by the City Engineer. 7.6. Other items. The traffic analysis shall include applicable items in sections of Exhibit 2, as well as other items relevant to the particular project being reviewed, as determined by the City Engineer. The City Engineer will consult with the Responsible Official as necessary to ensure 5