PRACTICE-ORIENTED TRAMWAY TRACK CONDITION MONITORING AND GIS SYSTEM Ákos VINKÓ, PhD Student, Budapest University of Technology and Economics, Hungary Email:
[email protected] In addition to visual inspection, mostly the under-load track geometry and vehicle dynamics measuring systems are used to determine track condition state on the European rail networks. The under load condition monitoring of tramway tracks is not widespread. On the one hand the reason for this may be the applied lower operation speed and axle load in tramway operation, on the other hand the higher safety factor of tramway tracks. According to experts condition monitoring based on visual inspection is sufficient enough to plan maintenance work of tramways. A uniform Track Condition Assessment Model, which is based on visual inspection and automatic under-load track geometry measuring system too, is needed to reduce maintenance cost and increase safety and ride comfort for passengers. In accordance with demands of the modern age, the data of asset management and the details of observed track defects must be stored in data base and display them on maps. Budapest has a large tram network, where significant reconstruction and development works are made currently. For the specialists of Budapest Public Transport Ltd. there is no decision support system, which facilitates the planning of maintenance work. This developing method wants to make maintenance work more efficient by using approximate estimate of track condition. Determining of track condition is based on visual inspection and data of in-service vehicle’s wheels- mounted accelerometers as well as GIS tools. This GIS system enables you to store data of the automatic under-load track geometry measuring devices and the visually observed track defects during perambulation of the tram lines too.