(a) Traffic movements in and out of commercial and industrial areas should not interfere with external traffic, nor create hazards for adjacent residential areas.
(b) The design of streets, service drives and pedestrian ways should provide for safe and hazard-free internal circulation.
(c) Streets carrying nonresidential traffic, especially truck traffic, shall not normally be extended to the boundaries of adjacent existing or potential residential areas, nor connected to streets intended for predominately residential traffic; but shall be connected, insofar as is possible, to arterial or collector streets in such a way that the number of intersections with such arterials or collectors shall be minimized.
(d) Street rights-of-way and pavement shall be adequate to accommodate the type and volume of traffic anticipated to be generated thereon. Curb radii at intersections shall be at least five feet.
(1970 Code Sec. 28.1-37)