Tech Memo #7 - Maricopa County Department of Transportation

Technical Memorandum #7Traffic AnalysisPeoria Avenue Corridor Improvement StudyJackrabbit Trail Parkway to Dysart RoadTable 4 – Control Delays and Corresponding Levels-of-ServiceLevel-of-ServiceControl Delay (sec/veh)A < 10B 10 – 20C 20 – 35D 35 – 55E 55 – 80F > 80The following assumptions/input parameters were used in the intersection analysis:Analysis Results Peak hour factor: 0.92 Vehicle travel speed: 45 mph Percentage of heavy vehicles: 4% Lane widths: 12 feet Base saturation flow rate: 1,900 pcphpl for all movements Right-turn on red movement was allowed and modeled in the software Cycle length: 60 secondsArterial Street Analysis ResultsAs shown in Figure 16, the 2031 traffic volumes along Peoria Avenue range from approximately10,000 vpd to 31,000 vpd. According to the criteria established above, a 4-lane arterial facilitywould be warranted from Jackrabbit Trail Parkway to Dysart Road by 2031.Signal Warrant Analysis ResultsAccording to the criteria shown in Table 3 and the 2031 traffic volume shown in Figure 16, allmajor intersections along Peoria Avenue would warrant signalization by 2031.Intersection Analysis ResultsThe intersection analysis results and recommended 2031 lane configurations are shown inFigure 18. For the 2031 design year, single left-turn lanes are recommended at a majority of theintersections with dual left-turn lanes being recommended at Jackrabbit Trail Parkway and atCotton Lane. As signalized intersections, under the conditions shown in Figures 17 and 18, allof the intersections are expected to operate at level-of-service ‘C’ or better during the peakhours.Page 26 January 2011