NM502 corridor: Some crucial performance observations

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Using numbers from the MIG NM502 Study, the entire corridor operates at 60% (Tinity) to 75% (East Rd.) of its nominal "average daily capacity". This extra capacity must provide for daily fluctuations, peak travel hours, and future growth; it also provides for higher quality, less congested driving experience. (Shortly, we'll consider the capacity of current and proposed roadways in more detail.)

The corridor has had excellent availability over the past few years-- until the 2011 construction of Phase IV of the Diamond Drive project which ties up the intersection of Trinity and Diamond. Major reconstruction on Trinity and East Road would, of course, reduce availability over the multiple phases of construction, especially if the construction involved the two-lane stretches of East Road and/or the installation of roundabouts.
Both Trinity Dr. and East Rd. have very low accident rates. Details of the accident data from 2008 and 2009 can be viewed in map and tabular form. I think the low accident rate in the corridor can be attributed in part to the relatively low congestion and to clearly marked, signalized, and well-designed traffic-flow configurations. Of course, drivers along the corridor deserve quite a bit of credit, too. Evidently they were largely skilled, sober, and attentive.

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