What are the differences between these signs for dedicated parking lots, open-air parking lots, indoor parking lots, and standard parking lots?

They are as follows:

1. The one with a P in the middle of the white circle on a blue background is an open-air parking lot

2. The one with a Λ above the P is an indoor parking lot

3. There are special parking lots with certain vehicle type symbols, such as non-motor vehicles, trucks, tricycles, etc. Underground parking lots usually have markings and height limit signs, and those with paid or free parking lots are marked with fees. and price point.

Extended information:

Importance of signage

1. Set up a parking lot sign at the entrance of the road marking to guide the entrance location of external vehicles;

2. Set speed limit, height limit, no sound, no fireworks signs, exit signs, entrance signs, and exit no-entry signs above the road marking entrances and exits;

3. Set speed bumps at the entrance to remind drivers Slow down;

4. Parking space number signs and vehicle exit signs are hung above the entrance and exit passages to guide drivers to the parking position and exit direction;

5. Yellow edges on both sides of the lane, ground White guidance arrows guide vehicles through;

6. Reflective road spikes are set on both sides of the edge to remind drivers to enter and exit the channel. When the wheels press on the road spikes, the vibration generated reminds the driver not to drive beyond the line;

7. Reflective guidance signs and reflective outline signs are set up on the walls on both sides of the entrance and exit passages and ramps to guide vehicles and serve as warnings;

8. Yellow warning signs are painted on both sides of the entrance and exit passages. Tapes (0-110 cm) to warn the driver of the walls on both sides;

9. Set up wide-angle mirrors at blind corners to increase the driver's field of vision.

Reference: Baidu Encyclopedia Parking Lot Signs