Critical Approach Speed. Example 8.2 just happens to describe the situation at Eighth Av...

Critical Approach Speed. Example 8.2 just happens to describe the situation at Eighth Ave. and Edgemont Drive in Mythaca. Eighth Avenue is the major street.

(a) How high must the approach speed on 8th Ave. be, so that a stop sign on Edgemont is required? Explain or show clearly how you found that speed.

(b) As shown in Example 8.2., the critical approach speed method indicates that a Yield Sign on Edgemont is the appropriate traffic control device (TCD).What if parking is no longer per-mitted on Edgemont? Will that change the situation as far as the best TCD is concerned?

(c) If the 85th percentile speed on 8th Avenue is 39 mph, rather than 31 mph, what TCD is appropriate?

(d) If a" and c" are both 16 ft in the example, what TCD is needed with the speed on 8th Avenue at 31 mph?

Reference Example: 8.2