[PRCo] Re: BusWay

[Jim Holland]

> Leroy Demery wrote:::::::
>
> Lyndon et al.,
>
> .....the "traffic density project" in cases where I can obtain data - 
> or conjure up key figures.
>
> ----------
>
> The facility is 9.1 miles long. My estimate for average travel 
> distance is 5 miles. Thus, 37.5 million passenger-miles per year, and 
> roughly 4 million "tennysons" (pass-mi per mi of route) per year.
>
> The weekday ridership figure implies about 16,000 "tennysons" per 
> weekday.  That's three times the "Pushkarev, Zupan and Cumella" 
> threshold, which in turn implies that this facility costs considerably 
> more to operate in the busway configuration than it would as a rail line.
>
> I'll leave it to others to determine how this might be demonstrated. 
> I'll note only that PAT describes the service level as 943 trips per 
> weekday. That implies an annual service supply of very roughly 1.5 
> million revenue vehicle-miles per year.
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Please notice the usage of such words or terms above:::::::
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"conjure up"
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"estimate"
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"implies"
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In other reports Leroy multiplies certain passenger statistics by 1.33 
to come up with some kind of  'estimate.'
.
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Seems there is a Tremendous Amount of assumption made with figgers in 
all these 1948 PRCo reports and I question how much is fact and // or 
good interpretation.
.
It will be interesting to see John and // or Ed chime in on these stats 
as they have tremendous experience with such info.
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Jim__Holland