Efficiency evaluation of signal control intersection is the basis of signal optimization and green time utilization (GTU) is one of the most important evaluation indicators. In current studies, the most common input of GTU evaluation for pre-timed signals is traffic volume data from fixed detectors. Fixed detectors might not be accurate due to device damage and might not be available because of low coverage in some cities. On the other hand, with the development of Global Position System (GPS) technology, the possibility of applying trajectory data to evaluate the efficiency of pre-timed signals has been continually gaining interest. This paper proposed a method for evaluating the efficiency of pre-timed signal control intersection by GTU using trajectory data. Based on the stop-wave and dissipation-wave information contained in the trajectory data, three indicators, Overall GTU Rate, Insufficient Occupancy Rate, and Skewness of Occupancy, were proposed to comprehensively evaluate the utilization of green time. A field case study was used to show the effectiveness of this methodology, and a sensitivity analysis was carried out by VISSIM simulation to illustrate the applicability. The results showed that when the penetration rate reaches 10% with a two hours database or when the total sampling time reaches four hours under the penetration rate of 5%, the mean absolute percent error value of the overall GTU rate will be less than 10% and the performance will be relatively stable.

CICTP