Comment by HelloMcFly

> by the way use a specific and pedantic definition of vehicle

There is no pedantry in calling a bicycle a vehicle. It's obviously a vehicle - it's entire purpose is to be a lightly-mechanized means of transit! Now if we see a sign in a park that says "no vehicles" many people - using our cultural knowledge and context - will interpret the intent of the sign as a reference to "[motorized] vehicles".