9.1. SR 07-18-2016 - Laserfiche WebLink

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There are sidewalks/trails on the south side of Main Street/181St Avenue as well as on the east sides of Twin Lakes Road and Dodge Avenue. Additional trails and sidewalks are planned for Line Avenue and 3rd Street as well as a connection between 3rd Street and 5t" Street to the west of Line Avenue. b. Traffic Volumes Intersection video was collected at each study intersection under weekday conditions in late April 2016. Using these videos, 48 hour turning movement counts were obtained at the study intersections. The data from the two days was averaged and a seasonal adjustment factor was applied to give a better representation of the traffic going through the intersections on a "typical day" by smoothing out any irregularities. The a.m. and p.m. peak hours were generally found to be from 7.00 to 8.00 a.m. and 4.30 to 5.30 p.m. These peak hours varied slightly depending upon the location and day. The turning movement count data for each study intersection and each day is contained in 15 -minute intervals in the Appendix. c. Level of Service LOS A An intersection capacity analysis was conducted for the _ existing intersections per the Highway Capacity Manual, iIWie 2010. 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 LOS c flow conditions) while LOS F represents heavy traffic flow (over capacity conditions). LOS D is considered acceptable at intersections. Individual movements are also assigned LOS grades. At busy intersections, one or more individual movements may operate at a lower LOS when the overall LOS D=Acceptable_ Intersection is operating acceptably at LOS C or D. This situation often occurs for movements with relatively low volumes and a relatively high overall traffic signal cycle length. The pictures on the left represent some of the LOS Y'.► grades (from a signal controlled intersection in San Jose, CA). These LOS grades represent the overall intersection LOS F = Unacceptable operation, not individual movements. A summary of the LOS results for the existing operations is shown in Table 1. These are based on the existing traffic Source: City of control and lane configurations as shown in Figure 2. The San Jose, CA LOS calculations were completed with the VISTROTM software package, which uses the methodology detailed in the Highway Capacity Manual 2010. Signal timings were determined upon observation. The full LOS calculations are provided in the Appendix. Traffic Operations Study 3 Line Avenue in Elk River