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Sub-problem: Analysis of the Signal with Pedestrians and Bicycles

A table to illustrate the total delay comparison table with the improved geometry and additional considerations is presented below.

Table 12. Improved Museum at Reitz comparing TWSC and Signal Control
	EB			WB			NB			SB
	L	T	R	L	T	R	L	T	R	L	T	R
Volume	379	670	2	0	597	178	0	0	0	204	0	484
Delay TWSC	30.4	0	-	-	0	0	-	-	-	999	-	999
Delay Signal	218.6	17.8	-	-	21.9	21.9	-	-	-	30.6	-	33.1
Total Delay TWSC	11,522			0			19,980			687,312
Total Delay Signal	60568			16,973			0			22,291
Intersection Delay	TWSC		718,814		Signal		99,832		Difference		618,982 (86%)

We have successfully shown that in this case, the signal control out-performs the TWSC even more (86% reduction in total delay) with the improved geometry.

Note that both the signalized and TWSC procedures assume adequate left-turn and through movement storage when computing delay. This means that these procedures do not account for left-turn queues that might exceed the provided storage and interfere with the through movements. The procedure is also treating the intersection as isolated and will not account for through movement queues that could spillback into adjacent intersection queues. We will look at how to compute and compare interacting queues in Problem 5.

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