(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.
Connect with UTSA online at Facebook, Twitter, YouTube, Instagram and LinkedIn.
UTSA Today is produced by University Communications and Marketing, the official news source of The University of Texas at San Antonio. Send your feedback to email@example.com. Keep up-to-date on UTSA news by visiting UTSA Today. Connect with UTSA online at Facebook, Twitter, Youtube and Instagram.
Dr. Michael Doyle has had an immense impact on the field of catalysis and organic chemistry. Join in a one-day symposium. In order to honor Dr. Doyle’s colossal career accomplishments with his upcoming retirement, we are holding a one day symposium eventRiklin Auditorium (FS 1.406,) Frio Street Building, Downtown Campus
The San Antonio Military Health and Universities Research Forum (SURF) attracts presenters from around the nation to showcase the work of students, trainees, faculty and staff. The mission of the SURF conference is to “advance research collaborations among academic, military, and industry partners to improve health outcomes and readiness.”TBD
The NHERI Summer Institute is a free event for early-career faculty, NHERI Graduate Student Council, K-12 educators from the San Antonio area, engineers, and researchers to learn more about the Natural Hazards Engineering Research Infrastructure (NHERI) community.La Villita Room (DBB 1.116,) Durango Building, Main Campus
Connect with peer mentors and fellow first-gen and transfer students, and learn how you can join UTSA's First-Gen programs for the Fall 2023 semester.Mentoring Hub (MS 2.02.02,) Multidisciplinary Studies Building, Main Campus
Building the Dual Language Leader Symposium will provide a safe space for current and aspiring leaders to learn best practices, theories, policies, and systems that support a dual language bilingual education.UTSA Southwest Campus, 300 Augusta St.
Streaming of Spray the Word that will conclude with a discussion with San Antonio's Poet Laureate, Andrea "Vocab" Sanderson.Aula Canaria (BVB 1.328,) Buena Vista Street Building, Downtown Campus
Celebrate Hispanic Heritage Month at our very own street fair - Calle UTSA. We will have activities, performances, food, music, and pinatas to break open! All free to UTSA students, faculty, and staff.Student Union Paseo, Main Campus
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.