Abstract
Using input from the public, a new type of vehicle emissions information system has been developed which utilizes an innovative variable message sign to display individual vehicle emissions information to passing drivers. Called the Smart Sign, the system merged highway messaging and on-road vehicle emissions sensing into a cost-effective public information system. The Smart Sign used a combination of words, colors, and graphics to connect with its audience. During its operational test period the system proved to be a viable technical concept which can be operated dependably and safely in even high traffic areas (in excess of 1000 vehicles per hour). The system was subjected to a wide range of operating conditions including weather extremes (−20 to 100 °F, heavy rain, hail, snow) and between May 16, 1996 to May 15, 1997 recorded unattended emissions information of more than 3 million readings from an estimated 250 000 individuals. The ability to operate the system without constant human supervision has cr...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
