TINJAUAN KARAKTERISTIK ARUS LALU LINTAS DENGAN MENGGUNAKAN 3 MODEL PADA JALAN LUAR KOTA (STUDI KASUS RUAS JALAN TGH LOPAN LABUAPI KABUPATEN LOMBOK BARAT)

Abstract

The growth in the number of vehicles that is not proportional to the provision of transportation infrastructure will cause transportation problems. The number of these vehicles continues to increase, causing many complex problems. One way to overcome this problem is to understand traffic behavior by creating mathematical and graphical relationships between traffic flow (flow), speed and density.The research was carried out on the TGH Lopan Labuapi Road section, West Lombok Regency with the aim of finding out the relationship between volume, speed and density of traffic using 3 models, namely the Greenshields, Greenberg and Underwood models, so that the most suitable model among the three models can be identified and also to know traffic characteristics including maximum volume, free flow speed, optimum speed and optimum density.From the analysis results, the best model is the Greenshields model so that the speed-density relationship model (Us-D) is Us = -0.431 D + 54.394, flow-Density (V-D) is V = -0.430 D² + 54.393 D -0.019 and flow-speed (V-Us) is V = -2.326 Us² + 126.487 Us . Based on the best model, namely the Greenshields model, the traffic flow characteristics obtained are maximum volume (Vm) of 1719.92, free flow speed (Uf) = 54.3 km/hour, optimal speed (Um) = 27.1 km/hour and Optimum Density (Dm) = 63.2 pcu/km