Why does the property put the gate on the slope?

When a vehicle goes uphill, it usually rushes up with a big throttle. If the brakes are placed outside the slope, you can't see the car going uphill. If it can't brake in time when it rushes out of the ramp, it will directly hit the brakes, seriously endangering the driver's life. So the gates are placed at the top of the slope, so that the car can be seen at a glance.