I want to open a garage door next to the gate, so that the garage door will go straight to the road. Is it okay?

I don't know what "ok" means. If it's not feng shui or something, from the perspective of safety, try to reverse the car into the warehouse every time, so that the car can have a better view when it leaves the warehouse and avoid the collision between pedestrians and vehicles on the road. If the garage door is too close to the road, you can install convex mirrors around the garage door, which is foolproof.