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Green light for public transport

Priorities in traffic lights for streetcars and buses mean faster travel on Warsaw Public Transport – traffic lights at intersections “see” WTP vehicles and make it easier for them to pass. Such solutions are being implemented in the capital city on bus lanes, including the longest one in Warsaw, on Radzymińska street. More streets are planned.

The future of public transport belongs to such systems. Thanks to them it is possible not only to shorten the travel time, but also to improve the punctuality. It will be possible to help a late bus with a “green wave”, and a bus running ahead of schedule will stop longer at a red light. In the future, the system will take into account not only the time, but also how many passengers are on a particular bus.

The priority system for buses on Radzyminska Street has been in operation for two months. During that time, the algorithms were refined, and the timetables – the times of travel between stops – were adjusted to the new, better conditions of operation at the end of March. Practice has confirmed the assumptions of the project: privileged public transport translates into faster travel along Radzyminska Street, which is certainly felt by passengers,

Algorithms not only take care of a smooth passage along Radzymińska street, but also facilitate turning at the intersections with Gorzykowska, Trocka or Jórskiego. The distance between stops is now covered by vehicles in one minute.

For the first time in Warsaw we are introducing central priority for public transport buses. The solution has been previously successfully implemented, among others, in Białystok on the territory of the whole city. The monitoring of the position of the vehicle takes place every few seconds, which is important for reducing the time. Warsaw counts on modern solutions improving public transport and we are glad that we can help in their implementation

says Dariusz Obcowski, President of the Management Board of Yunex Sp. z o.o.

Passengers gain

Travel time for buses has been shortened by up to several dozen percent. The most privileged routes, i.e. from Tarnogórska street to the Bieżuńska stop during the morning peak and from the Trocka Metro station to Tarnogórska street during the afternoon peak, are covered by buses by 34.8 percent. (two minutes) and 25.1 percent. (one and a half minutes) faster, respectively. The accelerated lines gain the most when traffic on Radzymińska street is lower. Then it is possible to travel the section on which the system operates even half as fast.

How it works

To control the priority, the systems that the buses are already equipped with are used – they send various data, e.g. their position, speed, line number, number of passengers. An application prepared by ZTM collects the available data from the vehicles, analyzes traffic conditions on the road and sends appropriate information to the traffic light system, and from there to the controller at a specific intersection. All this happens in real time.

Priority for buses appeared on a test basis already in January this year on Puławska Street, at the intersections with Lotników Avenue and Niedźwiedzią Street, and on Wał Miedzeszyński – at Przewodowa and Ogórkowa Streets. At the end of February the algorithms began to regulate traffic on five intersections of Radzymińska street as well – with Gorzykowska, Trocka, Gen. T. Rozwadowski, Z. Jórski and Tarnogórska.

What’s next?

The more intersections are covered by a system ensuring privileges for public transport, the more the system will “see”, the more efficiently it will work. That is why it is planned to cover new bus lanes with priority already at the stage of designing. This will be the case on Modlińska street, where the system will cover ten intersections, but also on the streets reconstructed after the construction of the subway: Górczewska and L. Kondratowicza. Algorithms will soon be helping night buses leave the terminus at the Central Station.