§ 395-29. Sight distances at intersections.

A. 

Clear sight triangles shall be provided at all street intersections, shall be reserved as such, and shall be drawn on the plan. Within such triangles, no vision-obstructing object shall be permitted which obscures vision above the height of 30 inches and below the height of 10 feet, measured from the center-line grade of intersecting streets. Such triangles shall be established, at a minimum, from a distance of:

(1) 

Seventy-five feet from the point of intersection of the center lines, except that:

(a) 

Clear sight triangles of 100 feet shall be provided for all intersections involving collector streets; and

(b) 

Clear sight triangles of 150 feet shall be provided for all intersections involving arterial streets.

B. 

Whenever a portion of the line of such clear sight triangles occur behind the required building setback line, such portion shall be considered a building setback line.

C. 

Sight distance at street intersections shall be such to provide the following minimum stopping distance for a vehicle traveling on an approaching street which has no stop or signal control:

	Design Speed of Approaching Street with No Stop or Signal Control (miles per hour)	Minimum Stopping Distance Required Unless Alternative Permitted by Borough Council (feet)	Alternative Stopping Distance Permissible at Discretion of Borough Council Only on Lightly Traveled Highways Where the Removal of Sight Obstructions Would Be Costly (feet)
	20	125	90
	25	150	110
	30	200	130
	35	250	155
	40	325	180
	45	400	200
	50	475	220
	55	550	240

D. 

Street intersections shall be located and designed to provide the following minimum sight distance for a vehicle traveling on an approaching street which has a stop control:

	Design Speed of Street Being Approached By Vehicle on Stop Control Street (miles per hour)	Minimum Sight Distance Required (feet)
	20	200
	25	250
	30	300
	35	350
	40	400
	45	450
	50	500
	55	550

	NOTE:
	For calculating sight distance, refer to A Policy on Geometric Design of Highways and streets, AASHTO, 1984 edition.