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Coordination for dedicated bus lanes

Efficient public transportation is the backbone of any sustainable city, and buses play a critical role in keeping people moving. Making bus travel more attractive to potential passengers is the key to reducing congestion and achieving the zero-emission target. Transit Signal Priority (TSP) methods aim to reduce bus dwell time at each traffic signal, individually, or/and to coordinate successive signals by creating green waves for dedicated bus lanes. The wider the green wave, the more buses will drive along the road without stops, except for mandatory ones. At that, Green Traffic Software is the best choice as it

-       provides all possible bidirectional green waves with a maximum total bandwidth

-       considering that not all buses get into the green wave, minimizes the average number of additional stops.

But even with the dedicated bus lanes, there is still significant potential to reduce the travel time – traffic lights coordination prioritizing buses.

Geometrically, a stop between two adjacent intersections decreases the bus’s average speed in this segment. As a result, the green waves on the time-space diagram have a broken shape, which does not prevent their successful optimization using Green Traffic Software.

How to get the coordination plan for the arterial with the bus lane:
 

  • Fill in the input table
     

  • Press a small tick at the bottom right of it
     

  • Select “bus stops” in the drawer below.
     

  • Enter the duration of each bus stop in the middle of the bus icon that appears in the corresponding cell/s. If there are no bus stops between two intersections, leave the fields empty. If there is more than one, enter the total duration of stops between these intersections.

BusStopInput.png

After that, everything goes as usual.

 

  • Click “Calculate,” get the Arterial Portrait, press one of the green asterisks in it, and get your green wave in the form of a time-space diagram with the sets of offsets and phase sequences.

BusComplete.png

This feature works for any number of coordinated intersections.

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