The #1 place to get into an auto accident is in a parking lot. What are some best practices you implement to reduce accidents?
An easy, affordable way to reduce speed are to add speed bumps to the entrance/exit of your parking lot, and anywhere else faster driving is implied. Speed bumps force drivers to consciously watch their speed or risk damaging their vehicles.
Display your parking lot safety policy by posting bold, eye-catching signs throughout your grounds. Effective signs are speed limit signs, stop signs, yield signs, and speed bump signs that will warn drivers of an upcoming bump.
In order for speed to be reduced and signs to be followed, you must figure out a way to enforce your safety policy. A committee of in-house "safety personnel" to issue warnings to fast drivers or distracted drivers. This doesn't need to continue forever, just until employees get the point. This committee could hold meetings and use statistics on parking lot safety and then reward employees with a lunch when they feel parking lot safety has improved.
By reducing your speed, increasing your important signage and fully enforcing these changes, there is no doubt that vehicles and pedestrians will be safer in your parking lot.