High Speed Rail Atlas 2024

[IsStatenIsland]

@Woke_Hoagland

This was the problem with the ‘racetrack’ 10 years ago:

https://www.amtrakoig.gov/sites/default/files/reports/oig-a-2015-012.pdf

145 is the fastest speed on fixed-tension catenary, which is much of the ‘rest’ of the stretch, apparently. Perhaps you have something definitive on the section from CP CLARK to CP HAM (in north Hamilton Township) which had the drilling complete for new poles but might not be constant-tension, weird as that may seem.

Clark to Ham constant tension is probably about to start work soon. The poles are partially complete. Meanwhile, most of that section is actually SAP, like County to Midway, and not original style. Yet only County to Midway is rated for 145 mph (except curves) and all other SAP sections (there are several others to the south) max out at 135 mph. I have no idea why.

See OpenRailwayMap for speeds.

[JL_Chicago]

Thank you IsStatenIsland.