Exploring the TTMS’s Impact to the Accessibility of a Long Distance Stretch Using Micro-simulation Approach

Road maintenance is generally analyzed considering complex types of work which must respect two considerable aspects: the first relating to the safety of workers, road users and those who somehow come into contact with the area on the other; the second instead correlated to the reduction of the impacts due to the shrinkage of the superstructure which entails criticalities to the transit vehicle flow. The evaluated parameters are the type of road, the position but also with the duration, visibility, speed and type of traffic. This work focuses on the evaluation of two different construction site layouts related to the TTMS (Temporary Traffic Management Scheme) which are periodically implemented in a medium-high traffic section of a small mountain town. The monitored area is located in one of the main connecting arteries of the city, adjacent to the main areas of attraction linked to the nearby commercial, residential and university areas. The study was addressed through the use of a micro-simulation tool. The results demonstrate how a different extension of the section to be maintained can drastically reduce the level of service (LOS), keeping equal vehicle flow. This approach is useful for road managers and local Authorities in order to analyze the impacts produced by the construction site in terms of increased congestion of the vehicle flow, evaluating this as the dimensions of the construction site vary. This preventive assessment aims to consider the best solution to be implemented in order not to interfere with other activities as this could further reduce the accessibility of the adjoining places