National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Improved Visibility Systems for Large Haulage Vehicles.

PB286065

Publication Date	1978
Personal Author	Hawley, K. W.; Hulbert, S. F.
Page Count	128
Abstract	An improved visibility system was developed for use on the large (100 ton+) haulage trucks typically operated in open pit and surface mines. The improved visibility system provides the truck driver with a means of viewing hazardous situations that occur in the extensive blind areas adjacent to his truck. The cost effective, reliable, visibility system consists of a closed-circuit television, three unique fresnel viewers, and two improved mirrors. This report describes the visibility problems of large trucks in the surface mining environment, shows the performance of existing mirrors, substantiates concept selection, and describes the prototype improved visibility system.
Keywords	Open pit mining Mine haulage Industrial trucks Mirrors Visibility Optical equipment Design criteria Benefit cost analysis Safety engineering
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 85H - Road Transportation
Corporate Authors	MB Associates, San Ramon, CA.; Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. (Final).
NTIS Issue Number	197901
Contract Number	H0262022

Improved Visibility Systems for Large Haulage Vehicles.

Improved Visibility Systems for Large Haulage Vehicles.
PB286065

Publication Date	1978
Personal Author	Hawley, K. W.; Hulbert, S. F.
Page Count	128
Abstract	An improved visibility system was developed for use on the large (100 ton+) haulage trucks typically operated in open pit and surface mines. The improved visibility system provides the truck driver with a means of viewing hazardous situations that occur in the extensive blind areas adjacent to his truck. The cost effective, reliable, visibility system consists of a closed-circuit television, three unique fresnel viewers, and two improved mirrors. This report describes the visibility problems of large trucks in the surface mining environment, shows the performance of existing mirrors, substantiates concept selection, and describes the prototype improved visibility system.
Keywords	Open pit mining Mine haulage Industrial trucks Mirrors Visibility Optical equipment Design criteria Benefit cost analysis Safety engineering
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 85H - Road Transportation
Corporate Authors	MB Associates, San Ramon, CA.; Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. (Final).
NTIS Issue Number	197901
Contract Number	H0262022