Search results for "Carriageway"
showing 2 items of 2 documents
Traffic Flow Variables Estimation: An Automated Procedure Based on Moving Observer Method. Potential Application for Autonomous Vehicles
2019
Abstract The estimation of traffic flow variables (flow, space mean speed and density) plays a fundamental role in highways planning and designing, as well as in traffic control strategies. Moving Observer Method (MOM) allows traffic surveys in a road, or in a road network. This paper proposes a novel automated procedure, called MOM-AP based on Moving Observer Method and Digital Image Processing (DIP) Technique able to automatically detect (without human observers) and calculate flow q, space mean speed vs and density k in case of stationary and homogeneous traffic conditions. In order to evaluate how reliable is the MOM-AP, an experiment has been carried out in a segment of one two-lane si…
The value of time and transport policies in a parallel road network
2007
Abstract One of the key questions in the evaluation of transport policies and investment decisions is the valuation of the time savings or losses arising from such decisions. This paper uses the stated preference method to determine the value of time in a given traffic context characterised by a road parallel network. The values obtained are higher than usual in Spanish project evaluation which, among other things, points out the need for specific studies of all transport projects whenever possible. Finally, two cases are described which illustrate the relevance of the value of time. The first evaluates time savings related to the pricing policies of a motorway competing with a trunk road. …