After numerous shakedown tests, including locating positioning, aiming, adjusting, testing, tuning, and evaluating various proximity warning systems, we concluded that the Doppler radar backup alarms appear to show promise for sensing objects within the blind areas of vehicles. Significant efforts must be made to achieve acceptable performance without false alarms. The Doppler radar discriminating alarm is not a "bolt-on and plug-and-play" unit that is easy to adapt to various situations. During the tests, it was shown that mounting the units to achieve optimum sensing ability without interference and false alarms from other systems was, at the very least, a tedious and time-consuming job. The radio frequency identification (RIFD) tag is currently undergoing antenna design modifications to improve its effective range. This system needs to be designed so that it does not sense more than the desired 40-50 ft (12.2-15.2m) range. The black-and-white closed-circuit television (CCTV) system successfully withstood a year's cycle of loading, hauling, and dumping, as well as the rigors of desert heat and cold. The floor-mounted frame isolated the unit from cab vibrations and offered the driver a single location for visual and verbal communication.
Keywords
Mining-industry; Surface-mining; Work-environment; Accident-prevention; Surface-properties; Trucking; Occupational-health; Safety-measures;
Author Keywords: surface mining; truck; visibility; work environment; occupational health and safety
Contact
C.M.K. Boldt, NIOSH, Spokane Research Laboratory, 315 E Montgomery Ave, Spokane, WA 99207
Links with this icon indicate that you are leaving the CDC website.
The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
You will be subject to the destination website's privacy policy when you follow the link.
CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website.
For more information on CDC's web notification policies, see Website Disclaimers.
CDC.gov Privacy Settings
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.
Thank you for taking the time to confirm your preferences. If you need to go back and make any changes, you can always do so by going to our Privacy Policy page.