How to draw a stop sign?

The following figure shows the stop sign.

A stop sign refers to a sign indicating the location of a parking lot. Depending on whether there is an arrow, there are two kinds of stop signs. One is a stop sign with an arrow, which means there is a certain distance between the parking lot and the stop sign, and the stop sign indicates the direction to the parking lot.

The other is a parking lot sign without an arrow, which is placed in the parking lot, indicating that this is a parking lot. ?

Reflection and illumination of signs

The 1. sign should be set in a bright place to ensure that people can recognize it normally. If you can't find a bright place near the place where the sign should be set, you can consider adding an auxiliary light source or using a light box.

2. The illumination on the sign surface is uniform, and the surface brightness should be above 30cd/m2.

3. The reflective material of the logo should have excellent wide-angle and retroreflective properties. Under the conditions of different incident angles (the angle between the light of the automobile headlamp and the normal of the sign surface) and different observation angles (the angle between the light of the automobile headlamp and the light reflected by the sign back to the driver's eyes), the retroreflection coefficient of the reflective film for the sign surface should meet JT/T279.