L&W steel powder coated 2x4 building.

Aluminum construction made for single track application, best used inside yard environments, no protection for maintainer from the weather.

SAIC equipment squeezed into a 2x4 building, RF unit had to be installed in a separate signal hut, battery requirements had to be reduced for space.

STC hardware is all solid state construction reducing the amount of total space required in a building, extra space can be used for printers, computers, additional communications, or even serve as a field work station.

Pole mounted AEI sites reduce the total costs of an AEI site installation by as much as $600 and saves space, the trade off is no AC, reduced back up power, no way to get out of the weather during maintenance, and less protection from vandalism.

Here the installer utilized an existing signal hut and a small AEI building to house AEI equipment for a single track application.

An STC AEI installation of a PTMW 4x6 building, these are very successful buildings providing a safe work environment, interior/exterior lighting, work surfaces, 110V AC outlets, secure, and can be upgraded with air conditioning. Air conditioning improves the comfort level for the maintainer however, is true purpose is to keep the computer hardware cool and extend its life.