Sub-problem 4c: Clifton Country Road 2004 PM - With vs. Without Conditions

It’s in the comparison of the with versus without conditions for the future design year, the traffic impact assessment finds its main emphasis. What network enhancements are required to accommodate the without conditions? Nominally, those improvements are the responsibility of the owning and operating agency. The differences between the without and the with condition are traceable to the development.

At the Clifton Country Road intersection, we can look at this without versus with comparison in the context of the PM peak, one of the major times when the impacts occur. Exhibit 2-45 presents the intersecting volumes for three conditions: the Year 2004 volumes without the site (2004 PM without); the percentage distribution of outgoing traffic (eastbound) and incoming traffic (westbound through, northbound left, southbound right); the site-generated traffic (vehicles per hour); the year 2004 with conditions; and the year 2004 with conditions with 30% more site-generated traffic. We will use each of the three intersecting volume conditions in our analysis.
 

Exhibit 2-45. Clifton Country Road Year 2004 Without and With Intersecting Volumes
Scenario	Eastbound				Westbound				Northbound				Southbound				Total
	L	T	R	Tot	L	T	R	Tot	L	T	R	Tot	L	T	R	Tot
2004 PM Without	33	985	389	1,407	572	961	267	1,790	352	232	528	1,113	493	168	16	677	4,988
% Addition Distributed	1%	35%	14%	50%	0%	36%	0%	36%	13%	0%	0%	13%	0%	0%	1%	1%	100%
Site-Generated Traffic	3	105	41	150	0	108	0	108	40	0	0	40	0	0	2	2	299
2004 PM With	36	1,089	431	1,557	572	1,059	267	1,898	392	232	528	1,153	493	168	18	679	5,287
2004 PM With +30%	37	1,121	443	1,602	572	1,091	267	1,930	404	232	528	1,165	493	168	18	679	5,376

  to Sub-problem 4c