Analysis Of Relationship Between Volume, Speed and Density Based On Greenshield and Greenberg Models A Case Study Of Zainal Abidin Pagar Alam and Imam Bonjol Bandar Lampung.

Abstract

An urban area that has a function as a center of activity in an area certainly affects the high level
of community activity and indirectly causes a high number of movement of people, vehicles and
goods in urban areas.The ability to accommodate traffic flows depends on the physical condition
of a road, both in quality and quantity as well as on the operational characteristics of the
traffic.The purpose of this study is to analyze road characteristics and to determine the
relationship between volume, speed and density on the Zainal Abidin Pagar Alam road and the
Imam Bonjol road in Bandar Lampung. This study uses the Greenshield and Greenberg models
as a method. This method results that the relationship between velocity and density is linear so
that we can see how the pattern of the relationship between velocity, density and volume is. The
results of this study obtained the free flow speed for Jalan ZA Pagar Alam for 55 km / hour and
for Jalan Imam Bonjol is 38 km / hour. The actual speed on Jalan ZA Pagar Alam is 28km / hour
and on Jalan Imam Bonjol is 30km / hour. Meanwhile, the congestion density found on the ZA
Pagar Alam road is 931 cur / hour and on Jalan Imam Bonjol is 979 cur / hour. The most
optimum model is in the Greenberg model for Jalan ZA Pagar Alam because the Greenberg
model has a determination coefficient value (R2) which is closer to the highest accuracy of 0.98%
and the Greenshield model on Jalan Imam Bonjol is because it has a determination coefficient
value ( R2) which is closer to the highest accuracy of 0.96%.