Resources: Fixed dimensions

TITLE HERE, (when I figure out what it will be)

So you have in hand a photograph of an asset you just have to have for your route. But as good as the photo is, there is a small problem: you don't have any dimensions to use. As it happens, there are certain dimensions that are standard enough that they can be used as a starting point to at least estimate other dimensions.

Rail and Trackside Assets

Category	Locale	Era	Description of dimension	value and units of dimension	comment
Railroad	North America	1886 to Present	Standard gauge railroad track	4' 8.5" / 1435 mm
Railroad	UK	1846 to Present	Standard gauge railroad track	4' 8.5" / 1435
Railroad	North America		Coupler horizontal center line - loaded car	33 to 34 inches
Railroad	North America		Coupler horizontal center line - empty car	34 to 35 inches
Railroad	North America		Wheel diameter - up to 70 ton car	33 inches
Railroad	North America		Wheel diameter - 70 to 119 ton car	36 inches
Railroad	North America		Wheel diameter - auto rack and intermodal cars	28 inches
Railroad	North America		Floor & deck height	40 inches

Architectural elements

Category	Locale	Era	Description of dimension	value and units of dimension	comment
Residence	North America		Door height	6' 8"
Residence	North America		Doorknob height	36"