This statement in the ROD makes me wonder that without funding for a Coast Daylight, whether the Coast Starlight might someday be facing the problem of degrading infrastructure threatening the LD train service:
Short answer, yes. Long answer: if-and-when CAHSR is up and running, that will threaten the viability of the Starlight south of San Jose as well. The Daylight is the future of the route; it is desirable for its service to intermediate stops, but it needs the upgrades to serve those markets well.
I'd argue that a successful CAHSR will do more for the passenger train product, the Amtrak brand, and the California Amtrak services, than anything else that could happen out West.
The prevailing image of Amtrak today is of rust buckets creeping along the tracks, or parked at a siding waiting for god knows what, and losing big money with every minute. After CAHSR the public will know, by the millions of "experienced it myself", that trains can be modern, clean, comfortable, as well as fast, and show a good return on the investment. Then a 12-hour scenic daylight trip San Francisco-L.A. will not seem like something so much to be avoided.
Meanwhile population growth will continue along the coastal edge. More corridor service (more
Surfliners L.A.-Santa Barbara and L.A-San Luis Obispo, and trains Salinas-Gilroy-San Jose-Oakland/S.F.) will share the upgraded tracks with the
Starlight and the
Daylight. They'll share some costs, raise brand awareness, and support the proposed new stations at Soledad and King City, which should help the
Starlight and the
Daylight.
Perhaps most of all, more corridor trains will help to justify the needed capital investment along this route. What's "just not worth it" for one added roundtrip has much better math when the cost is for three or four or five more trains.
With the contemplated improvements to allow a
Coast Daylight, the planners talk about roughly 12 hours roundtrip. That's an hour better than now on the
Starlight Southbound, allowing an hour earlier arrival in L.A., at 8 p.m. instead of 9 p.m. as now. That time would give riders better connections to MetroLink etc and a better chance of getting home by bedtime. (The
Starlight is 12 hours now Northbound, 10 a.m. out of L.A. and !0 p.m into Emeryville. With an hour gained for turnaround, tweaking the schedule might allow an hour earlier departure out of L.A. and a 9 p.m. arrival in the Bay Area.)
Anyway, I'm a devout believer that added frequencies
always bring many added riders. Then that economies of scale thing kicks in. And again, the cure for what ails Amtrak is more Amtrak, including more
Coast trains in Cali.
So I ain't scared of no CAHSR.