Question

why is the word ambulance printed laterally inverted on ambulance van​

Answer 1

Explanation:

because when seen in the rear view mirror by another vehicle, the image of the word would get inverted, letting the driver to read the word properly so that he can provide way to the ambulance.

Answer 2

Answer:

The word ambulance is printed laterally inverted because when another driver in the vehicle who has to give way to the ambulance van when watches into the rear view mirror can read the laterally inverted text again becoming inverted and so the driver can easily read that it's an ambulance van.