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Sub-problem 3a - Page 2 of 7

ID# C203A02

Sub-problem 3a: Shenendehowa Campus AM & PM peak - Existing Conditions

The AM peak volumes by 15-minute interval are presented in Exhibit 2-27. The peak hour is highlighted in yellow. As can be seen, there is high variability in most of the flows. Only the eastbound through is relatively consistent. For example, during the peak hour, the eastbound right ranges from 54 to 111 vehicles in a 15 minute period. The westbound left ranges from 106 to 45 (because of the school traffic), while the northbound right ranges from 41 to 79.

Exhibi 2-27. Shenendehowa Campus AM peak hour volumes
Time Eastbound Westbound Northbound Southbound Intersection Total
LT TH RT Tot LT TH RT Tot LT TH RT Tot LT TH RT Tot
7:00 0 113 19 132 19 132 0 151 12 0 22 34 0 0 0 0 317
7:15 0 118 27 145 35 149 0 184 18 0 30 48 0 0 0 0 377
7:30 0 120 41 161 41 168 1 210 11 0 21 32 1 0 0 1 404
7:45 0 172 64 236 86 166 1 253 6 0 18 24 0 0 0 0 513
8:00 0 171 111 282 106 128 5 239 33 1 53 87 0 1 1 2 610
8:15 0 190 58 248 78 153 2 233 47 0 79 126 2 0 0 2 609
8:30 0 166 54 220 45 94 9 148 27 0 41 68 1 0 2 3 439
8:45 0 151 62 213 68 121 12 201 27 2 59 88 7 1 6 14 516
AM Peak 0 678 285 963 297 496 28 821 134 3 232 369 10 2 9 21 2,174
PHF 1.00 0.89 0.64 0.85 0.70 0.81 0.58 0.86 0.71 0.38 0.73 0.73 0.36 0.50 0.38 0.38 0.89
%HV 0.00 0.03 0.09 0.05 0.15 0.06 0.04 0.09 0.13 0.00 0.08 0.09 0.00 0.00 0.11 0.05 0.07

If we do a standard peak hour analysis for the AM peak hour, we get an overall level of service C. Dataset 22 contains the complete input data for the AM peak hour analysis. Exhibit 2-28 shows the delays and levels of service for each of the movements. The largest delays are associated with the westbound left and the conflicting eastbound through. The westbound left movement clearly has the worst LOS (D).

Exhibit 2-28. Shenendehowa Campus AM peak hour delays and levels of service
Dataset PHF Conditions HV Correction Performance Measure EB WB NB SB OA
LT TH RT Tot LT TH RT Tot LT TH RT Tot LT TH RT Tot
22 Overall Yes Delay 33.9 12.4 27.5 39.8 12.0 22.0 25.0 33.9 30.7 19.2 19.2 25.9
LOS C B C D B C C C C B B C
v/c 0.94 0.49 - 0.64 0.50 - 0.59 0.79 - 0.09 - -

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