One of the biggest nightmares for a driver is whether someone enters the blind spot when he or she is going to swing. This is especially a challenge in urban areas where there are many pedestrians and cyclists in the immediate vicinity of the vehicle.
In addition to keeping your eyes on the road, the driver must make sure that no one enters the blind spot when the bus passes through the city streets. Now Metrotek offers a system that can help the driver in many ways. Simply a driver’s assistant who keeps an eye on the blind spot, speed and distance to the front.
The MobilEye system is available in different packages. Everything from systems keeping track of with speed and distance, to solutions for driverless driving. Metrotek has a basic package with sign readers and distance to vehicles. But this can be expanded to cover blind zones as well, as on the BYD articulated bus we have tested.
“The basic package includes a camera that is placed in the front window of the bus or truck. A screen that can be mounted in the A-pillar. Here the driver gets the distance to the front-end vehicles, as well as speed and sign recognition for the speed limit, ”says Espen Hveding from Metrotek.
He adds that the system can be expanded with optical blind zone cameras for different types of vehicles up to 24 meters of double-beam buses. Then there will also be a display mounted on both A-pillars inside the vehicle that will show with clear signs if anyone is in the blind spot.
«When a person enters the blind spot, the driver is warned by a yellow marker. When he or she is too close to the bus, the warning turns bright red and a sound warning will alert the driver that he is in danger of hitting someone, «says Hveding, adding that the system is calibrated so that it will not alert about everything. There must be an imminent danger of collision in order for the system to alert. The same applies when a person passes in front of the vehicle.
The first bus that has got this system mounted is Nobina’s full-electric articulated bus from BYD. The system can be retrofitted in all vehicles and Metrotek says that it is often cheaper to have them assembled here in Norway than to have it factory-fitted. And now the system will be tested in normal traffic on line 31 in Oslo. A line where there are many passengers, as well as people walking and cycling along the route.
The bus magazine got to test both the bus and the system in really close traffic by both vehicles and pedestrians. And the system works. In normal traffic, a yellow light message will be displayed if someone enters the blind spot and on which side they walk or cycle. The system can also separate vehicles and people apart. And whether it is stagnant or moving. A background actor came with us to provoke a warning that something was in the blind spot. And we got a clear sound, as well as red light warning the driver who could then slow down and avoid collision.
The test bus has been in traffic for exactly one year and has driven 35,000 kilometers. The bus works well and responds exactly to the accelerator pedal. It is easy to maneuver in the city streets. The mirrors provide good visibility backwards, but it is clear that blind spots exist, and we really got to experience this when the actor provoked a notice. He was not visible with the mere eye.
Knut Trondsen from Nobina explained where the system should be tested. He could tell that they had
made a conscious decision to do this test on the BYD articulated buses that are already in a test project in electric mobility in Oslo.
«We have chosen BYD articulated bus to test the MobilEye system. These are buses that are already in a test project in Oslo and they are articulated buses with many blind spots, ”says Knut Trondsen from Nobina. He added that the buses are now going into traffic and the result will show whether the system will work as promised, or need to be adjusted somewhat for optimal function.
He says that it can also be linked to fleet management to be able to use this for training of drivers or used to change routes.
«If you get frequent hits on special streets or places, you can use this data to see if something can be changed on the particular route or on that street. We know this has already been done elsewhere, where parked cars and cyclists have created dangerous situations. Collected data was used to change the street design and move parking spaces to secure pedestrians, ”he says.
The article is published with permission from http://bussmagasinet.no/