Everybody knows that the LRT alignment that would go through the second most dense area of the Twin Cities metro would have fewer trips than one that goes through a railroad trench and parkland, but few have dared to ask why.  Come with me on a exploration of the wild world of transportation modeling.

If you dig deep in the Southwest Transitway DEIS, like a stubborn prospector, you can sometimes find real gold.  And by gold, I mean stinky logic.  Deep in Appendix H, “Supporting Technical Reports and Memoranda Part 1″ is Table 1 in the Transit Effects Appendix (on page 274, to be exact).  Table 1 summarizes the daily LRT boardings by segment.  These segment summaries are based on station-by-station ridership numbers found later in the Appendix.  Here is the table:

Notice anything strange?  That’s right, route 3C-1 is assumed to have zero riders continuing their trip from the Central Corridor LRT.  Chapter 6 of the main DEIS document has a section on “Interlining Assumptions” which goes into more detail, but the key sentence seems to be on page 6-6 and the table following:

The LRT 3C-1 (Nicollet Mall) Alternative is not integrated with either the Hiawatha or Central Corridor LRT guideway for daily operations.

In the table that follows, under “Passenger movement/convenience” while other alternatives are labeled “One-seat ride possible”, the Nicollet alignment is branded as a “Stand alone LRT line”.  That’s right.  When you exit the train at 4th Street and Nicollet Avenue, you step off into an abyss.  You’ve just ridden a stand-alone LRT line to THE END OF THE LINE.  Don’t even try to transfer.

Of course, there are legitimate operational concerns about tracks not aligning and trains not being able to continue on for use on another line.  But to assume that ALL travelers coming from the Central Corridor, when confronted with the idea of a *gasp* transfer literally hundreds of feet away would abandon all hope and just drive a car the whole way (or take a slower bus), seems terribly ridiculous to me.  The ridership projections also assume that the 3C-2 line, which does interline, actually has fewer Central Corridor riders than 3A, because you know, those few extra minutes.  It’s not like there are any attractive destinations along Nicollet and in Uptown.  I’m pretty sure no one from the U of M goes to Uptown for anything.  They’re all, “out of my way mister, I’m headed for Eden Prairie!”

If you add back in those 5,300 Central Corridor travelers to 3C-1, you get 29,850 daily boardings, or the highest of the all the alignments.