Grading

Grading

Grading Standards

Use	Extreme range (%)	Desirable range (%)	AODA
Public Streets	0.5 - 10	1 - 8	Private streets	0.5 - 20	1 - 12	Service lanes	0.5 - 15	1 - 10	Parking areas	0.5 - 8	1 - 5	Parking ramps	up to 20	up to 15	Collector walks	0.5 - 12	1 - 8	Entrance walks	0.5 - 8	1 - 4	Pedestrian ramps	up to 12	up to 8	Stairs	25 - 50	33 - 50	Game courts	0.5 - 2	0.5 - 1.5	Paved gutters	0.25 - 100	1 - 50	Grassed swales	0.5 - 15	2 - 10	Terraces and sitting areas	0.5 - 3	1 - 2	Grassed banks	up to 50	up to 33	Planted banks	up to 100	up to 50