Conflict between pedestrians and vehicles

I use a white cane. Several times while crossing the Torquay bound lane from the hospital side to the Heal Road side, I have been confronted with a vehicle which had done a U turn around the island to gain access to the petrol station. They have been sat in the filter lane for Heal road. When their filter goes green so dose the pedestrian crossing advise me it is safe to cross but if a driver FROM Torquay direction wants to access the petrol station they come into direct conflict with pedestrians like me who have been advised it is safe to cross the road. I understand that, to access the petrol station from the correct directions - Newton Abbot, Heal, Newton Road or the hospital - a driver FROM Torquay direction would need to cross the lights and then find somewhere to turn around to come back to the petrol station. However, I feel for me and others like me, it could one day, cause a serious problem. Thank you for your kind attention to this situation.