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� a�f f C7� DECATUR, ILLINOIS <br /> C <br /> V p La.ke Shore Driue Relocation Study <br /> � +u:a�-" <br /> '/[tINO�`'� <br /> � <br /> � Traffic Distribution <br /> Once the potential future generated trips have been estimated, this additional traffic was <br /> , superimposed onto existing peak hour traffic volumes and reassigned to different streets,dependent <br /> on the traffic impedance of each alternative. Figures 3-1 through 3-11 depict the traffic assignments <br /> for each alternative. The pm peak hour represented the period which was most appropriate for <br /> � capacity analysis of the study area street system, in that it represented the most severe traffic <br /> congestion period of the average day. The capacity analysis procedure determined the delay an <br /> average vehicle would encounter passing through a signalized intersection The operation of the <br /> intersection was graded as a level of service, based on the following Highway Capacity Manual <br /> � criteria: <br /> .� '; ��� �:� <br /> � `�'���' ' .''�;,�`��: <br /> ::�-� ,..�, <br /> Level of Service Stopped Delay per Vehicle (Sec) <br /> � A <_ 5.0 <br /> � B 5.1 to 15.0 <br /> C 15.1 to 25.0 <br /> , D 25.1 to 40.0 <br /> E 40.1 to 60.0 <br /> , F >60.0 <br /> A level of service C or better is generally considered acceptable traffic operation. Capacity analysis <br /> � was performed for ten intersections in the traffic impact study area where it appeared that one or <br /> more of the alternatives would alter the traffic demand through the intersection. The following table <br /> summarizes the results of the capacity analysis. <br /> � <br /> r <br /> r <br /> � <br /> t <br /> � Bucher,Willis£�Ratliff-20 <br /> r�ysomwmxsroxrs�aeroar wrc <br />