Abstract
This study estimates mean service delay for turning movements with significant emphasis on a proposal of total delay models using microscopic analysis of travel time data under indiscipline driver behavior. Field service delay estimates are validated using microsimulation for all the turning movements. The authors utilized a manual video graphic technique for data collection of thirteen uncontrolled intersections from all over India. Conflicting flow rate is determined for a certain number of conflicting vehicles as obtained for subject right and left-turning vehicles. Driver turning time for motions concerning vehicular classifications is determined. Moreover, the effects of service delay and oncoming traffic flow on turning driver waiting time are investigated. Validation of service delay is also done against delay estimated using effective capacity (Ci) for the “Four-wheeler SUV” stream. It is validated that the conflict technique can predict 52% of field estimated service delays with a sensitivity of as low as 3.0 seconds/ vehicle/ approach for various traffic streams.
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