When someone notices you, it is much more likely they will avoid you!  TFMoran’s survey vans are often parked on the side of roads and while we have had yellow flashing roof lights on the front our vans for many years, we discovered that cars traveling in the same direction as our parked vans, could not see the front lights.  In response to this potential safety hazard, TFMoran has installed yellow and white flashing light bars on the back of primary survey vans.