ANALYSIS OF OPERATION AND SAFETY CHARACTERISTSICS OF LEFT-TURN LANES

This is an analysis of the different input varables that the decision maker uses in preparing the warrants for a left-turn-lane installation. These quantitative variables are usually evaluated according to the decision maker's society, preferences, and economic priorities. An analytical analysis of the turning process and its influence on through vehicles is presented, followed by a simulation model that quantifies the aggregate operational effects of turning vehicles. The quantitative results obtained from both the analytical and simulation models are analyzed with special emphasis placed on the number of stops and deceleratons.