engleski

Analysis of the Possible Cycle Time Savings on Tram Line No. 12 in Zagreb

This paper has explored the ideal and maximum positive cycle time scenario on tram line No. 12 in Zagreb, for simultaneous cycle time savings ΔT by reducing the total operating time on line To, both achieved by the possible implementation of tram priority via traffic lights based on the local automation. The application of the tram priority in urban areas by using the local automatic setting the points and signals for trams on the junctions can provide economic, traffic, safety as well as ergonomic benefits and improvements to some extent. The most important traffic benefit for passengers could be an increase in the operating speeds of trams in Zagreb. Very important traffic benefits for operator ZET in Zagreb could be an increase in the cycle speeds of trams in Zagreb, as well as increasing the gross transport work of a single line with the same number of trams and drivers in one shift. A possible realistic saving of the total operating time ΔTo on line No. 12 in Zagreb is based on the assumption that all signals at the traffic lights for trams should be green due to tram priority via traffic lights. Measurements of the real operating time savings ΔTo by using the stopwatch - pencil - record list method were conducted in the middle shift during the afternoon peak load with passengers, as well as in the early shift during the morning peak load with passengers, for all of the seven days in one week on line No. 12., and for the new tram NT 2200 which accounts for 51% of the ZET tram fleet.

tram priority ; local automation ; green traffic lights ; cycle time savings ; line No. 12

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