safety. Driveway length is regulated to provide for uninterrupted traffic flow on the public street, based on anticipated required stacking lengths of entering and exiting vehicle during the peak period, as determined by a traffic study. County throat length guidelines for unsignalized driveways are shown in Table 19.
Table 19. Minimum Lengths for Unsignalized Driveways
LAND USE
DRIVEWAY LENGTH (IN FEET)
Any major entrance with 4 or more total lanes in the in the driveway. Typically malls, and "Super" retail centers.
300 or greater, based on traffic study
Regional Shopping Centers (over 150,000 sq. ft.)
250 (minimum)
Community Shopping Center (100-150,000 sq. ft.) (Supermarket, drug store, etc.)
150 (minimum)
Small Strip Shopping Center
50 (minimum)
Smaller Commercial Development (convenience store with gas pumps)
30 (minimum)
Residential Developments
250 (maximum)
A variety of substandard access designs were observed along arterial and collector routes in the study area, particularly along older commercial areas abutting US highway 41, US 301, and Sun City Center Boulevard. Figure 6 is an example of an older developed area along the Sun City Center Boulevard corridor in Wimauma with wide access connections and lack of a safe transition between parking areas and the highway, creating dangerous conditions for drivers, pedestrians and cyclists. Shared parking to the rear of the sites and side street access, with parking lot cross access, would improve safety as these sites redevelop or a change in use occurs.
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