Helpful track guides documents (PDF) available from state commuter agency.

[JCitron]

My state commuter agency, the Mass Bay Transit Authority (MBTA), or the "T" as we refer to them as, has an excellent document library.

I know that the standards may vary in various places around the world, if not within the US, but these guides such as these here are quite useful.

http://www.mbta.com/about_the_mbta/...Roadway&submit_document_search=Search+Library

These are blueprints which give such information, such as loading gauge, in feet naturally for us, between tracks, the special case for super-elevated curves, and specs for switches.

What I found interesting is our track loading gauge is only 6.6 feet from either track to the center or a total of 4 meters. This is quite narrow compared to what I've seen while out in the Midwest where there's plenty of room to spread out.

 

[Christopher824]

I just read This One concerning;

RAILROAD OPERATIONS DIRECTORATE

The attached Specifications are required for any construction and/or related activities on,
over, under, within or adjacent to railroad property owned or controlled by the
Massachusetts Bay Transportation Authority. They are intended to provide general
guidelines and safeguards. Attachment “A” of Construction Guidelines and Procedures
contains a summary of MBTA Railroad Operations Specifications which may be required.
It is the responsibility of the Contractor to obtain all the necessary specifications for each
project.

Cool stuff, good link, saved to my favorites

 

[JCitron]

I just read This One concerning;

RAILROAD OPERATIONS DIRECTORATE

The attached Specifications are required for any construction and/or related activities on,
over, under, within or adjacent to railroad property owned or controlled by the
Massachusetts Bay Transportation Authority. They are intended to provide general
guidelines and safeguards. Attachment “A” of Construction Guidelines and Procedures
contains a summary of MBTA Railroad Operations Specifications which may be required.
It is the responsibility of the Contractor to obtain all the necessary specifications for each
project.

Cool stuff, good link, saved to my favorites

I just took a look at that one. There's a nice list of the various organizations in the back such as the AASHTO, FRA, etc. which can then be searched online to bring up their websites since there's no direct link in the publication its self.