30.66B.100 Level-of-service standards.
(1) The county has adopted level of service standards for county arterials in the comprehensive plan. The department of public works will plan, program, and construct transportation system capacity improvements for the purpose of maintaining these adopted level-of-service standards in order to facilitate new development that is consistent with the comprehensive plan.
(2) The minimum level-of-service standards are established in the transportation element of the county comprehensive plan and are set forth in SCC 30.66B.101 and SCC 30.66B.102. The determination of whether or not an arterial unit meets the adopted level-of-service standards is as follows:
(a) First, using the level-of-service standard based on average daily trips (ADT) adopted in SCC 30.66B.101, weekday, two-way, 24-hour volumes are used to measure ADT, consistent with department of public works rules establishing details on the methodology, frequency and validity of traffic counts. ADT thresholds, set forth in SCC 30.66B.101, vary by urban/rural classification, number of lanes and whether or not arterial units have been designated as ultimate capacity pursuant to SCC 30.66B.110. If the ADT on an arterial does not exceed the threshold identified in SCC 30.66B.101, the arterial unit meets the county’s standard.
(b) If the ADT on an arterial unit exceeds the threshold identified in SCC 30.66B.101, the average travel speed is evaluated. If the average travel speed on the arterial unit falls below the appropriate threshold identified in SCC 30.66B.102, then the level of service on the arterial unit does not meet the county’s standard. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 05-092, Dec. 21, 2005, Eff date Feb. 1, 2006).