Calculation of turns costs in accessibility models. Case study: Manizales, Colombia
Contemporary Engineerng Sciences
Transport supply models, such as territorial accessibility, have been used over the years as a method of urban planning and transportation in various cities around the world. In this sense, it is essential to execute these models in reality as much as possible in order to make better decisions. Territorial accessibility models use the road infrastructure network and average speeds to calculate travel times. Using the Dijkstra minimum path algorithm, the minimum route in the road network can be
... oad network can be found which includes the global turn costs since, hypothetically, the vehicles use more time when performing these maneuvers. In the city of Manizales, the turn costs has been determined in a subjective way, in the year 2011, in 69 seconds when turning left and 60 seconds when turning right, which has been used in various investigations of territorial accessibility in recent years. This investigative work seeks to update these turn costs for the city of Manizales in an empirical way. Videos will be recorded in 20 intersections according to a prioritization order described, which will be further analyzed taking into account the time spent by vehicles (cars, trucks, buses and motorcycles) when turning left and right. Subsequently, a statistical analysis is carried out to determine the new turn costs for use in territorial accessibility models for the city of Manizales. 2778 Santiago Cardona et al.