In the choices regarding roads, there is more and more the necessity to specify parameters which define the road service quality considering all points of view: user, owner/manager and external community. As a consequence, we defined a procedure based on a model that, through the evaluation of 54 significant elements, defined “indicators” of the road service, succeeded in associating to every road section a single synthetic parameter, expression of the quality of road service offered, called Global Level of Service – GLS. These procedure takes account of all the parameters involved with the right weight. The Global Level of Service, with its structure, is a very versatile tool, that, with the aid of Geographical Information System, enables to reach the following aims: in operation phase, it enables to start the procedures of planned maintenance and management, identifying the priority of operations; in design phase, the GLS method with GIS use becomes a necessary tool to make choices, helping in identifying the best design option; in driving phase, it gives the users a tool giving informations about route, after having decided an origin, a destination and the time of departure, according to priority scales which favour different indicators according to personal needs (travel time, comfort, landscape, etc….). The single indicators’ algorithms and the GLS algorithm have been implemented in a software called GLS2004.xls which allows the user a fast input of the indicator’s values during survey phase and an easy execution of the operations required by the procedure. So, GLS2004.xls was created in order to computerize the procedure able to determine the GLS of each road section considered as a part of the road network of our interest. This software was subsequently applied to a road network in the northern part of Bari district having the towns of Bisceglie, Molfetta, Terlizzi, Ruvo and Corato as vertices. The network was classified from a functional point of view and it was created a Geographical Information System which enabled to analyse results and to value the efficiency of the proposed methodology.
|Autori interni:||Ranieri, Vittorio|
|Titolo:||Evaluation of Road Service Levels Through the Software GLS2004.xls|
|Data di pubblicazione:||2005|
|Nome del convegno:||3rd SIIV International Congress: People, land, environment and transport infrastructures|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|