(March 6, 2019) -- It’s dark on the backroad as a motorist speeds toward the intersection. Up ahead, the stop sign blends with the night and in seconds a deadly crash occurs. According to the U.S. Department of Transportation, more than half of all roadway fatalities occur on rural roads. Now engineers at The University of Texas at San Antonio (UTSA) are building and testing a low-cost, self-powered thermal system that will detect vehicles, improve the visibility of stop signs and prevent deaths.
“Stop signs on rural roads are difficult to notice, and this leads to dangerous accidents,” said Ayetullah Biten, a doctoral candidate in the UTSA Department of Electrical and Computer Engineering.
Rural roads account for 70 percent of the nation’s byways and the location for 54 percent of all fatalities, according to the Federal Highway Administration. Without access to a power supply, they are more likely than other roads to lack signals and active traffic signage.
To improve driver safety, Sara Ahmed and Samer Dessouky, professors in the UTSA College of Engineering, created a low-cost, self-powered intersection detection and warning system to alert rural motorists about potential dangers. The next-generation stop sign uses a multi-pixel passive infrared sensor that detects a vehicle as it approaches an intersection. Once the vehicle is within the sensing range, a signal beacon triggers the stop sign’s flashing system.
“The sensor observes thermal signatures and processes them to detect passing vehicles,” said Zachary Balcar, a master’s student in the UTSA Department of Electrical and Computer Engineering. “It distinguishes the vehicle’s direction of travel, estimates the velocity of its thermal signature and determines the classification of the vehicle.”
Overall, the smart system has a 90 percent vehicle detection rate and a vehicle classification accuracy of 72 percent. Compared to current traffic sensing technologies in urban areas such as magnetic loop inductors, video image processors and microwave radar, the new system consumes less power and offers better accuracy. The new technology is also much less expensive to produce. Current safety systems can cost as much as $5,000. UTSA’s detection promises to be a fraction of the price at $60 to $100 per unit.
“Our off-roadway system can be installed on urban or rural roads completely independent of the utility power grid, because it is powered by small solar panels and functions in all weather conditions,” said Ahmed.
>> Learn more about the low-powered sensing system.
The low-power rural intersection detection and warning system was developed with support from the Connect program, a collaborative research program that is co-funded by UTSA and Southwest Research Institute.
The project team has filed an invention disclosure for the system, which was recently recognized nationally by the American Road and Transportation Builders Association, and expects to adapt the technology to pedestrian detection, for border security and for vehicle-to-infrastructure communication.
Learn more about UTSA’s Electrical and Computer Engineering innovations.
Celebrate UTSA’s 50th Anniversary and share social media posts about the 50th using the hashtag #UTSA50.
UTSA Main Campus will serve as a designated polling station during the early voting period, today through October 30, and on Election Day, November 3.H-E-B Student Union Ballroom (HSU 1.104)
The First Generation and Transfer Student Center (FGTSC), Transfer and Transition Student Success Services (T2S3), and Alamo Runners invite you to join the virtual fun as we celebrate National Transfer Student Week. UTSA is enriched by transfer students who bring their diverse experiences, backgrounds, and assets to our campus. National Transfer Student Week seeks to celebrate, empower, and support transfer students with events and workshops specifically designed for transfers.Virtual Event
Join Student Health Services as we discuss Intellectual Wellbeing with TRC - Academic Success Coaching.Virtual Event
Are you missing our Roost Tournaments? We will be having our UFC 3 tournament and our tournaments are now back to Wednesdays! Sign up and show us your skills. See if you have what it takes to be our champion.Virtual Event
Dr. Mo. Jamshidi is an Endowed chaired professor at the University of Texas-San Antonio. He is a Persian Native, born in Shiraz, Iran in 1944. He was an advisor to NASA for 10 years (including with the first MARS Mission and seven years with NASA Headquarters (Washington, DC), among other organizations. He has over 800 technical publications including 74 books in English and 5 foreign languages. For the past 20 years, he has been collecting data on Persian Scientists and Poets from 1000 BC to 2021 AD. This presentation will be about the book written by Dr. Jamshidi that collects information on Persian scientists and poets.Virtual Event
Join this informative, interactive webinar with practical tips on how to plan your charitable giving now and for the future. Michael Perkins, member of the UTSA Alumni Association and the UTSA College of Business Accounting Advisory Board, is no stranger to gift planning. As managing partner and CEO of Slattery Perkins Ramirez P.C. (“SPR”) his primary areas of focus include counseling business owners, executives, and other high net worth individuals on personal financial issues, including estate planning, wealth transfer, and income tax planning techniques. Michael also practices philanthropy himself – establishing an endowed scholarship at UTSA as well as supporting numerous charitable causes throughout San Antonio.Virtual Event
UTSA Main Campus is a voting poll for Election Day on November 3.H-E-B Student Union Ballroom (HSU 1.104
The University of Texas at San Antonio is dedicated to the advancement of knowledge through research and discovery, teaching and learning, community engagement and public service. As an institution of access and excellence, UTSA embraces multicultural traditions and serves as a center for intellectual and creative resources as well as a catalyst for socioeconomic development and the commercialization of intellectual property - for Texas, the nation and the world.
To be a premier public research university, providing access to educational excellence and preparing citizen leaders for the global environment.
We encourage an environment of dialogue and discovery, where integrity, excellence, inclusiveness, respect, collaboration and innovation are fostered.
UTSA is a proud Hispanic Serving Institution (HSI) as designated by the U.S. Department of Education.
The University of Texas at San Antonio, a Hispanic Serving Institution situated in a global city that has been a crossroads of peoples and cultures for centuries, values diversity and inclusion in all aspects of university life. As an institution expressly founded to advance the education of Mexican Americans and other underserved communities, our university is committed to ending generations of discrimination and inequity. UTSA, a premier public research university, fosters academic excellence through a community of dialogue, discovery and innovation that embraces the uniqueness of each voice.