Downtown Davis is a shopping, dining and entertainment center covering a 32-block area and containing 750 different businesses. It is designed to be bicycle-friendly, but is equally welcoming to visitors arriving on foot, by car or through the nearby Amtrak transit system. There are four charging stations for electric vehicles located in the E Street Plaza Parking Lot, the Amtrak parking lot and the 4th and G Parking Garage. Downtown Davis has "20-minute" zones marked by a green curb and located on the corners of many blocks; these zones are used for short-term parking as well as loading and unloading.