Analysis of vertical traffic calming measures in impacts on road safety and environment in Lithuania state roads

Abstract

Several years after implementation of vertical traffic calming measures on roads, crossing cities and settlements, for the first time in Lithuania the research was carried out to determine their effect on the change in the number of accidents, their severity and noise within the operation zone of speed humps, raised pedestrian crossings and speed bumps. The paper present research methodology and analysis of results of vertical traffic calming influence to the road safety and environment in Lithuania roads. It presents that engineering measures have a positive impact on the improvement of the road index to safety. The study of vertical traffic calming measures impact to environment showed that it does not increase equivalent noise level of vehicle in its installation places.