All right, now it's not quite as simple as just reading off that list, because sometimes there's more than one route serving the same corridor, and we're interested in the best
corridors, not so much in how RTD serves them operationally (at least not yet). So let's go back to the full list, and add the L and X routes together with their local routes, to get a single number for each trunk line.
Once we've done that, let's establish a cut-off. That same pdf says RTD's standard for 10-minute frequency is 40 boardings per hour, so let's eliminate everything that doesn't meet that threshold. 40 boardings per hour is a pretty low threshold for such frequent service, so I'm not worried about losing any routes that might be close. Really, we're going to want corridors that are better than 40.
Let's also eliminate the Mall Shuttle, anything in Boulder, and the regional/airport/sports routes (since we're looking at urban circulation here).
Finally, let's add the names for the routes, so we know what we're talking about.
That gives us these 18 corridors:
Code:
Route Boardings per Hour Name
15+15L 121.8 East Colfax
16+16L 99.4 West Colfax
30+30L 92.1 South Federal
0+0L 86.4 South Broadway
86X 84.9 Westminster Express
303 81.6 Longmont school bus
122X 71 Wagon Rd Express
40+40X 69.8 Colorado Blvd
3+3L 68.8 Alameda
120+120X 65.8 120th Ave (Broomfield to Brighton)
31+31X 59.1 Federal
44+44L 48.2 44th Ave (crosstown Wheat Ridge to Montbello via downtown)
29/36/36L 47.1 South Federal
100+100X 45.9 Kipling (Westminster to Littleton)
48+48X 45.6 48th Ave (Commerce City to downtown)
83L 43.6 North Broadway
72+72X 42.5 72nd Ave (Westminster-Arvada-Commerce City)
2+2X 41.5 Morrison Express
Now let's remove the suburban routes (including 44th, although that one is debatable). And let's combine the various Federal routes into a single corridor. That leaves us these corridors:
- East Colfax
- West Colfax
- Federal
- South Broadway
- Colorado
- Alameda
Glowy just about had it right
(you have no idea how much it pains me to say that).
Next step: Mapping.