The Problem with Tunnel Work Today
Conducting regular maintenance on one of the thousands of railroad tunnels across the US is no simple or minor task. It can take days to complete regularly scheduled maintenance on a single tunnel, even with a full team of workers alongside an entire fleet of track equipment. Part of the issue in completing tunnel maintenance timely and efficiently is the mandatory work delays caused by the creation of carbon monoxide and other harmful airborne toxins put off by the combustion engines in use during tunnel work.

Once the concentration of carbon monoxide or any other hazardous bi-products put off by gasoline/diesel powered equipment reaches unsafe levels, work must be temporarily shut down until the detected toxins return to a safe level. These temporary shutdowns usually happen numerous times throughout a single workday and even when only lasting briefly, can cost tens of thousands of dollars in unused labor.


No More Temporary Shutdowns
In evaluating the problem and attempting to find a solution, there are two immediate directions to pursue: Either eliminate the production of hazardous combustion engine bi-products, or remove them before they reach dangerous levels, and the Tempest Mobile Ventilation Unit or MVU® is capable of doing just that; rapidly ventilating any size tunnel of virtually all hazardous fumes and gases, and replacing them with clean, fresh air.


During a number of recent tests in which a Tempest MVU® was used during typical tunnel maintenance operation, carbon monoxide and other undesirable chemicals were reduced to 0 PPM and remained at that level for as long as the MVU® remained on. This highly effective and efficient method of tunnel ventilation entirely eliminates the need for temporary shutdowns, saving enough time and money to pay for the unit in just a few uses.

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