Good thread. I love the Music City Star's funding and plan and think that something similar could work really well as a suburban commuter rail service in Central Ohio.
I've also toyed with google maps like this in the past just for fun. ;) Tracing existing rail lines generally leads you to most of the population centers in Central Ohio where a transit station makes sense.
My additions/subtractions:
- A southern leg to hit Rickenbacker (major job center) and down to Circleville (pop:13k+). I think Circleville has a very underrated little Downtown area with some cool shops and restaurants and things. Plus it would be great to get to the Pumpkin Fest without sitting in traffic and parking. ;)
- A southeast leg to hit Brice & Pickerington (pop:17k+). That area is growing like crazy.
- I'd probably cut off those two northern legs at Delaware. At least to start. Service to Marion (50 miles away) may be better served by the 3C anyway if it can be configured to run during peak use hours. Do many people commute that far for work in Columbus anyway?
- A northwest leg to run through Hilliard out to Marysville (pop: 17k+). Another rapidly growing area. Might even be worthwhile to run a few miles past out to the Honda Plant (10th largest employer in region with 6300+ workers) for connection to jobs out there.
- A west leg to run through the west side neighborhoods, West Jeff, and out to London.
- I would alter the east leg to bypass Port Columbus, and instead set up a different "shuttle" line that ran directly from Port Columbus to the main Downtown terminal. I see most of these routes primarily serving as suburban commuter lines with irregular service times built around rush hour use, and I think the airport could use something with a more regular service and longer hours.
I'd probably prefer to see these lines prioritized in terms of timeline based on population densities served with some sort of special priorities place on airport (CMH & Rickenbacker) service.