ANALYSIS OF T JUNCTION ON PRAMUKA STREET – DHARMA BUDI STREET, BANJARMASIN CITY

Abstract

The growth of land transportation is increasing from year to year, especially in the city of Banjarmasin. The T junction of Jalan Pramuka – Jalan Dharma Budi is an unsignalized intersection in Banjarmasin. The flow of deviated traffic is high, and there is the potential for congestion and conflict between road users. Therefore, it is necessary to analyze to improve the level of service at the intersection and make it optimal. The analysis calculation refers to the 1997 Indonesian Road Capacity Manual and is assisted by applying of the Indonesian Road Capacity Analysis (KAJI) application. The data needed for this analysis are primary data obtained from a field survey conducted for 15 hours from 06.00 – 21.00 WITA, and secondary data in the form of population growth data in Banjarmasin. Based on the analysis and calculation of the intersection in existing conditions, the degree of saturation (DS) is 1.205, the queue probability is 90%, the intersection delay (D) is 41.77 sec/pcu, the service level index (ITP) is included in the "E" level. The performance of the Jalan Pramuka – Jalan Dharma Budi intersection can be improved by widening the geometric, increasing the median, and at the 3-phase signalized intersection. The value of the degree of saturation (DS) has improved to 0.802; the delay value is 17.02 sec/pcu with a cycle time of 48 seconds so that the service level index (ITP) value of "C" is obtained.