Shuttles -- # of Cars -- should be # of Trips

[Jim Holland]

Greetings!

	In the report he sent out concerning routes and equipment, Don Galt
wrote the following:

	<<"The column headings are cramped in printing, and occasionally
ambiguous. Here are listed my own headings, along with the report’s
headings for the same columns and some attempts at explanation:">>

	Much has been said about 6-cars on the 110-Charles St. Transfer (while
we ignored 8 cars on 109-Charles Street, *presumably* similar to the
latter day service to downtown!)  Also, much has been said about other
transfer--shuttle routes like the 51 and Atwood.

	Then how do we explain this???::::  2-cars on Charleroi and only one on
the Washington to Pittsburgh interurbans?  One would wait well over 3
hours for that one car on the Washington interurban!!!!!!!

	Again, Don said:::::::

	<<"The column headings are cramped in printing, and occasionally
ambiguous.">>

	I submit that the column heading *Afternoon Peak Cars* should be
changed to read *Afternoon Peak Trips/Hour.*

	If you multiply *Afternoon Peak Cars* times *Afternoon Peak Headways*
you get  SIXTY  (60)  e-v-e-r-y  s-i-n-g-l-e  t-i-m-e!!!!!!!  (okay, 8
times 8 is 64 - the 7.5 trips per hour on an 8 minute headway must have
been rounded off - 102-Etna, 103-Millvale, 107-Brighton Road are 8 trips
per hour with 8 minute headways.)  So I guess that this means that every
single route in Pittsburgh was exactly 60 minutes long  O-R  that the
heading of *Afternoon Peak Cars* is wrong!

	Other examples:::::::
		 106-Perrysville Ave 24 times 2.5 minutes = 60!!!!
		 111-Troy Hill 10 times 6 minutes = 60!!!!
		 114-Western Avenue 15 times 4 minutes = 60!!!!
		 204-Crafton - Ingram 4 times 15 minutes = 60!!!!
		 207-Elliott - Sheraden 20 times 3 minutes = 60!!!!
		 213-MtWashington via Tunnel 10 times 6 minutes = 60!!
		 313-Brookline 5 times 12 minutes = 60!!!!
		1101-Charleroi 2 times 30 minutes = 60!!!!
		1303-Washington to Pittsburgh 1 times 60 minutes = 60!!

	Additionally, this table supplied by Don lists total round-trip
mileage:::::::
		 109-Charles Street--6.22 Miles Round Trip.
		 110-Charles Street Transfer--1.25 Miles Round Trip.
		 314-Bon Air--0.70 Miles Round Trip.

	The Dead Head Mileage for both 109 and 110 is 0.66 miles to the barn
from the end of the line  That for 314-Bon Air is 3.60 miles.

	From the above we note:
		A)--  Two different route mileages for 109 and 110.
		B)--  # of Cars times headway = 60 in all cases.
		C)--  More than 1 car is needed to serve Washington int.
		D)--  More than 2 cars needed to serve Charleroi int.

	THEREFORE:::::::    *Cars Afternoon Peak* was a hard to read heading
which would be better served if changed to: *Trips per Hour Afternoon
Peak.*

James B. Holland
------- -- ---------
        Pittsburgh Railways Company (PRCo), June of 1949 -- June of 1953
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