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Page 5 <br />kimley-horn.com 4637 Chabot Dr., Suite 300, Pleasanton, CA 94588 925-398-4840 <br />Table 5: Intersection Level of Service Criteria <br />Level of <br />Service (LOS) <br />Signalized Unsignalized1 <br />Delay (sec/veh)Delay (sec/veh) <br />A ≤ 10 ≤ 10 <br />B > 10.0 – 20.0 > 10.0 – 15.0 <br />C > 20.0 – 35.0 > 15.0 – 25.0 <br />D > 35.0 – 55.0 > 25.0 – 35.0 <br />E > 55.0 – 80.0 > 35.0 – 50.0 <br />F > 80.0 > 50.0 <br />1 For All-way stop-control intersection (AWSC), LOS is defined based on average intersection delay. For side-street stop- <br />controlled intersections (SSSC), LOS is defined based on the worst movement delay. <br />Source:Highway Capacity Manual, 6th Edition <br />Transit <br />Transit projects were evaluated based on service frequency LOS from the Transit Capacity and <br />Quality of Service Manual (TCQSM)under which LOS criteria varies depending on the type of transit <br />service. As shown in Table 6, LOS for urban scheduled transit service3 is determined on headway or <br />the time between buses/trains. For intercity schedule transit services, commuter or express buses, <br />LOS is determined on the number of trips provided each day. <br />For this analysis, all transit projects were evaluated on the basis of the urban scheduled transit <br />service LOS criterion as the projects are anticipated to operate throughout the day on a fixed <br />schedule. A level of service standard of LOS F was used for this analysis. In addition, other benefits <br />such as increases in ridership, as well as resultant system-wide VMT reductions may also be <br />evaluated. <br />Safety <br />The number of crashes per million vehicle miles travelled (crash/M-VMT) were calculated for the <br />project segment based on the observed number of crashes within 5 years. The number of crashes for <br />the future no build conditions were estimated based on the Safety Performance Functions (SPF) <br />described in Highway Safety Manual (HSM) 2010. SPFs are regression equations that estimate the <br />average crash frequency for a specific site type as a function of annual average daily traffic and the <br />segment length. The reduction in crashes in the Future 2040 Build scenario were calculated by <br />applying Crash Modification Factors (CMF) based on proposed safety improvements for each project. <br />For the purposes of this study and based on the observed data reviewed, a threshold designation <br />was established for crashes per million-VMT of more than 1. <br />3 Urban schedule transit service includes all scheduled service within a city, as well as service <br />between cities within a larger metropolitan area.