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Current Physical Conditions Table 2-1 Average Annual Daily Traffic Volumes 30,000 25,000 ~ 20,000 to 0 ; ~ f/I 15,000 Q)- U :c (I) > 10,000 5,000 level of Service LOS D = Accept}l.ble Source: City of San Jose, CA 0 1986 1988 1990 1994 1996 1998 2000 2003 2005 2007 Year 6,900 6,400 6,700 7,000 7900 9,100 10,100 10,500 9,400 9,100 16,000 15,300 15,700 15,500 15,800 15,800 16,300 16,000 16,000 14,700 15700 14 500 17500 17 000 20 000 19 000 24000 23000 22 400 22 400 13,500 11 500 12500 12,500 12,000 12 000 14,000 13,000 11 ,800 13,100 An intersection capacity analysis was conducted for the existing intersections per the Highway Capacity Manual. Intersections are assigned a "Level of Service" letter grade for the peak hour of traffic based on the number of lanes at the intersection, traffic volumes and traffic control. Level of Service A (LOS A) represents light traffic flow (free flow conditions) while Level of Service F (LOS F) represents heavy traffic flow (over capacity conditions). LOS D is considered acceptable in urban conditions. The photos on the left represent some of the LOS grades (from a signal controlled intersection in San Jose, CA). The LOS results for the existing study hours are shown in Table 3.2. These are based on the existing traffic control and lane configurations as shown in Figure 3.1. The existing turning movement volumes from Figure 3.2 were used in the LOS calculations. The LOS calculations were done using SYNCHRO™ software. Ramsey County's existing timing plans were used in the analyses. The complete LOS calculations are included in the Appendix. 7 October 2-18 The New Lake Johanna Boulevard