Solar powered highway sign
Abstract
A roadside sign was equipped with lights powered by photovoltaic solar panels to improve nighttime visibility and evaluate equipment performance and needs. The photovoltaic panels were found to be reliable and effective for powering flashing lights on a highway warning sign. Cost of the panels is high so their use should be limited to locations where commercial electrical power is not available. Solar electric systems should be carefully designed to minimize costs and produce a reliable system. Sufficient prediction for the solar panels should be provided in areas where theft or vandalism might be a problem.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1980
- Bibcode:
- 1980STIN...8126297H
- Keywords:
-
- Highways;
- Illuminating;
- Solar Energy Conversion;
- Technology Utilization;
- Warning Systems;
- Circuit Diagrams;
- Cost Analysis;
- Fabrication;
- Mounting;
- Solar Arrays;
- Engineering (General)