ANALISIS KEBERANGKATAN ARUS DAN WAKTU HILANG PADA SIMPANG BERSINYAL DILENGKAPI TTCD (TRAFFIC TIME COUNTER DISPLAY)

Abstract

A preliminary study conducted Sulistyono (2006) and Sulistyono, et al. (2006) where based TTCD effectiveness analysis has a significant influence on the end of lost time. Whereas for start of lost time, the use of TTCD not give significant effect on traffic flow. The research objective was conducted with the aim of knowing the characteristics of saturated flow, lost time and end additional time and influence of TTCD of some intersections in East Java. Primary data collection was done at 18 locations in the intersection of East Java by conducting field measurement and recording of traffic flows using a DVR (digital video recording). Analysis of saturation flow and lost time is done using the approach of Webster's theory. The result of the departure of the saturation flow analysis, showing the movement of vehicles tend to perform early before the green time (± 3 seconds) with a peak saturation current departure occurs at the second interval (9-15 seconds) or the third (15-21 seconds) . The average value obtained for the lost time )( 3,14 seconds and end extra time (A') = 1.45 seconds lower than the theoretical reduction (MKJI). Additions TTCD at traffic lights can give a positive value in improving the performance of the intersection that is increasing the amount of traffic flow during the period of green (green + yellow) is shown decreasing lost time early and late addition to increasing time.