COM 0649.004 2002-2004 - Laserfiche WebLink

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Criterion B, Accident Experience The County was requested to provide two years of traffic accident data for the study intersection prior to the installation of the four way stop. The request also included whatever data would be available six months after the four way stop was installed to determine whether any changes in traffic accident patterns took place. The data was to be reviewed for the number of accidents per year and the types of accidents and compared to the five accidents per year and type of accident criteria. Criterion C, Minimum Volumes. The ten hour traffic turning movement count volumes were compared to the minimum volume warrant for multiway stops to determine whether or not the current traffic volumes on the major and minor streets exceeded the warrant volumes for more that eight hours a day. The major street minimum volume is 300 vph while the minor street minimum volume is 200 vph. The delay component of the warrant was not analyzed since delay data was not collected. Criterion D, Combination of Criteria. If the above criteria were not met, the criteria were reevaluated with 80% of the values for criteria B and C. The four way stop control would be warranted if both adjusted criteria were met. The evaluation results for the four criteria are reported in the next section. The optional criteria for multiway stops listed in the MUTCD were also evaluated for applicability to this study. If the optional criterion was applicable, then the evaluation methodology is described. Optional Criterion A, Controlling Left Turn Conflicts The ten hour traffic turning movement count volumes show the volume of through and turning movements, including left turns made from Kakalina Street. A level of service analysis was made to determine if a left turn problem exists. A level of service F for the left turn movement would indicate the need for mitigating actions. Since both approaches of Kakalina Street are only one lane, all movements F1