TRAFFIC FLOW ANALYSIS AT UNSIGNAL JUNCTION (CASE STUDY: INTERSECTION OF JL. MANDALA – JL. RAYA TLANAKAN PAMEKASAN CITY)

Abstract

We often find traffic problems in big cities, and even small cities such as Pamekasan. The problem of congestion and traffic congestion often occurs at crossroads, especially the intersection of Jl. Mandala – Jl. Raya Tlanakan, Pamekasan City. The reduced performance of the intersection will cause losses due to a decrease in speed, an increase in delays and vehicle queues and a decrease in environmental quality. Parameters of an unsignalized intersection include capacity, degree of saturation, delay and queuing opportunity. From the analysis, the maximum C (capacity) value of 2257.83 smp/hour does not exceed the basic capacity (Co = 2700 smp/hour). The low capacity classification occurring on Thursday, December 9, 2021 at 18.00 – 21.00 WIB. The highest DS (Degree of Saturation) value is 0.63, and the largest D (Intersection Delay) value is 19.17 sec/smp occurred on Thursday, December 9, 2021 at 06.00 – 10.00 WIB. Then the capacity obtained at the intersection of Jl. Mandala – Jl. Raya Tlanakan, Pamekasan City is still feasible to accommodate the traffic volume because it does not exceed the basic capacity of the intersection. However, to overcome congestion at intersections, especially during rush hour/working hours, it is necessary to supervise and secure from related parties.