Each accessible parking space should have a sign. The access aisle appears to be 8 feet wide, so this could be a van accessible space. If so, in ND the space for the vehicle is to be 11 feet wide with a 5 foot wide access aisle. While ADA does not specify which side of the vehicle the access aisle is on, preferably for vans the access aisle should be on the passenger side. The ramp to the door is much steeper than 1:12.