There was a 5.2 earthquake 25 miles southwest of Lamont, California which is located 12.9 miles south of Bakersfield. It was felt from Fresno south to Los Angeles. Was either the Tehcapie Loop or the Cajon pass affected either by slow orders or a stop order?
RESPONSE LEVEL 2
Anything within 50 miles of the epicenter just found itself at restricted speed... Get out your compass and start drawing 50 mile radii and 100 mile radii with your AREMA Chapter 9.1.2 copy in-hand. (M/W, B&B and signal just got their day ruined by this Level 2 event...until all inspections are done and hopefully released, the dispatchers and train crews take a back seat.) Hope all the aftershocks are at 4.9 or below- Otherwise start over...
The yellow peril and BNSF have really good connections with USGS and their own seismic services in their respective central offices and dispatching centers along with all the weather stuff they use...
Richter Scale 6.0 and above you go to response level 3 and everything comes to a halt within 100 or 150 miles until released after inspection. (The rules in southern CA are slightly different with a smaller radius than the rest of North America)
so, Tehachapi = YES and Cajon = NOPE and the Coast lines around Santa Barbara would just be in the clear .... Shortlines play by the same rule...
Mojave sub east to Warren (just west of Mojave) and north to a little past Delano. I'm guessing the tunnels west of Tehachapi get a bit of a going over as well.
I was on a Santa Fe train in 1952 and went through these tunnels the day prior to the earthquake that caused some of them to collapse.
diningcar I was on a Santa Fe train in 1952 and went through these tunnels the day prior to the earthquake that caused some of them to collapse.
Timing is everything. (Jack Benny)
I have tried unsucessfully to download the AREMA. Where can I download it, or would one my fellow forum members email me a copy which would be GREATLY appreciated.
You don't just download it - you buy it first. (unless you find a bootlegged copy or go to a university campus engineering library.)
ProductCategoryDownloadables (arema.org) Chapter 9 goes for $290.00
Copyright issues abound.
The manual is updated annually in April.
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