Getting Started - Page 6 of 7

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Getting Started

Data
Three kinds of data are generally needed for traffic analysis. Demand or volume information specifies the turning movement flows (usually in vehicles per hour) at each intersection approach. Intersection geometry includes the number and configuration of lanes at an intersection and along an arterial. Control conditions include information about the traffic signal system, including signal timing and phasing data. For this particular case study, pedestrian, bicycle, transit, and intersection spacing and queuing data are also very important.

Exhibit 5-8. Peak-Hour Turning Movement Demand. Existing PM Peak-Hour Volumes
	EB				WB				NB				SB
	L	T	R	P	L	T	R	P	L	T	R	P	L	T	R	P
N-S	57	295	57	165	126	303	189	105	50	424	268	225	126	194	64	25
Reitz	111	650	2	250	0	580	52	250	12	0	8	150	60	0	144	250
Center		531	35		58	360			106		188		35	39	87
Newell	278	479	16	240	52	301	165	250	78	193	90	30	61	84	67	10
Future PM Peak-Hour Volumes
N-S	59	458	59		198	477	298		52	437	416		126	200	66
Reitz	379	670	2	250	0	597	178	250	12	0	8	150	204	0	484	250
Center		680	44		60	468			137		194		36	40	90
Newell	334	576	20		54	382	170		99	199	93		63	87	85
P: Peds

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