2019 年 13 巻 p. 1648-1663
The present study attempted to define LOS at manually operated tollbooths under mixed traffic conditions in India. Field observation shows that a wide variation presents in headway and service time for different vehicle class at tollbooths. Further, clustering technique used to define ranges of LOS. Based on Silhouette analysis and referring to the previous studies six numbers of clusters ranges from LOS ‘A’ to ‘F’ proposed in the present study. Present work concluded that service time, headway and delay experienced by vehicle less than 7, 13, and 43 seconds (s) respectively show the toll plaza operating at LOS ‘A’whereas service time, headway and delay required more than 30, 43, and 202 s respectively shows that toll plaza operating at LOS ‘F’. This study may be useful for toll plaza management to check the operational efficiency of manually operated toll plazas under heterogeneous traffic conditions with less effort and cost.