Research Article
Aug 1967
High-Altitude Multiple-Vehicle Emission Tests
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VIEW THE REPLYAuthors: Adolph Zulian and Gilbert A. BonforteAuthor Affiliations
Publication: Journal of the Sanitary Engineering Division
Volume 93, Issue 4
Abstract
Colorado is undertaking construction of urgently needed dual vehicular tunnels through the Continental Divide at an elevation of approximately 11,000 ft. There are no existing heavy volume tunnels at this elevation. Special problems in connection with the 8,800-ft-long tunnels include the fact that human tolerance to carbon monoxide (CO) is significantly decreased as the altitude increases, and CO emissions from vehicles increase with altitude. It was necessary to develop new design criteria beginning with multiple emission tests at various grades, speeds, and altitudes. In addition, CO emissions on a single engine under rigorously controlled laboratory conditions were conducted. The results of these tests, together with previously determined data at lower elevations by the Public Health Service were used to arrive at design criteria of the tunnels.
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Published In
Journal of the Sanitary Engineering Division
Volume 93 • Issue 4 • August 1967
Pages: 1 - 7
Copyright
© 1967 American Society of Civil Engineers.
History
Published in print: Aug 1967
Published online: Feb 12, 2021
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Authors
Affiliations
Adolph Zulian
Asst. Chf. Engr. of Engrg., Colorado. Dept. of Highways, Denver, Colo.
Gilbert A. Bonforte
Assoc. Member and Proj. Engr., Tippetts-Abbett-McCarthy-Stratto New York. N. Y.
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