Virginia Tech Transportation Institute (VTTI): Recent submissions
Now showing items 1-20 of 654
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Sensor Degradation Detection Algorithm for Automated Driving Systems
(Safe-D National UTC, 2023-03)The project developed a sensor degradation detection algorithm for Automated Driving Systems (ADS). Weather, cyberattacks, and sensor malfunction can degrade sensor information, resulting in significant safety issues, such ... -
Private 5G Technology and Implementation Testing
(Safe-D National UTC, 2023-03)NEC developed a Video Analytics implementation for traffic intersections using 5G technology. This implementation included both hardware infrastructure and software applications supporting 5G communications, which allows ... -
Infrastructure-Based Performance Evaluation for Low-Speed Automated Vehicle (LSAV)
(MDPI, 2023-05-05)This study assessed the limitations of the EasyMile EZ10 Gen 3 low-speed automated vehicle (LSAV) while operating on public roadways. The primary interest was to evaluate the infrastructure elements that posed the greatest ... -
The Surface Accelerations Reference— A Large-Scale, Interactive Catalog of Passenger Vehicle Accelerations
(IEEE, 2023-04)There is a need for a large-scale, real world, diverse, and context rich vehicle acceleration catalog that can be used to design, analyze, and compare various intelligent transportation systems. This paper fulfills three ... -
Simple Diesel Train Fuel Consumption Model for Real-Time Train Applications
(MDPI, 2023-04-20)This paper introduces a simple diesel train energy consumption model that calculates the instantaneous energy consumption using vehicle operational input variables, including the instantaneous speed, acceleration, and ... -
A Data Driven Approach to the Development and Evaluation of Acoustic Electric Vehicle Alerting Systems for Vision Impaired Pedestrians
(Safe-D National UTC, 2023-02)The number of electric vehicles on the road increases exponentially every year. Due to the quieter nature of these vehicles when operating at low speeds, there is significant concern that pedestrians and bicyclists will ... -
Smart Work Zone System
(Safe-D National UTC, 2022-10)In the previous Safe-D project 04-104, a prototype wearable Personal Protective Equipment vest that accurately localizes, monitors, and predicts potential collisions between work zone (WZ) workers and passing motorists was ... -
A Holistic Work Zone Safety Alert System through Automated Video and Smartphone Sensor Data Analysis
(Safe-D National UTC, 2022-12-16)This project was inspired by a major gap identified in the literature pertaining to work zone safety monitoring systems that leverage advanced technologies for tracking workers, identifying hazardous situations, and alerting ... -
Lane Change Hazard Analysis Using Radar Traces to Identify Conflicts and Time-To-Collision Measures
(Safe-D National UTC, 2023-01-30)This project analyzed existing data and assessed the safety equivalency of prototype video-based camera systems to support Federal Motor Vehicle Safety Standard 111 rulemaking efforts and investigate camera-based side view ... -
Slippery Road Vehicle Early Warning System: Method Augmentation
(National Surface Transportation Safety Center for Excellence, 2023-03-09)Two prior projects conducted by the Virginia Tech Transportation Institute (VTTI) for the Federal Highway Administration (FWHA) demonstrated that small but statistically significant differences in vehicle wheel rotational ... -
Evaluation Tools for Low-Speed Automated Vehicle (LSAV) Transit Readiness of the Area
(Safe-D National UTC, 2022-11-22)Automated shuttles are small, low-speed (generally less than 25 mph) vehicles that do not require a human operator, though to date all have included an onboard human attendant. This project aims to assess the limitations ... -
Understanding Crashes Involving Roadway Objects with SHRP 2 Naturalistic Driving Study Data
(National Surface Transportation Safety Center for Excellence, 2023-03-08)This project used the second Strategic Highway Research Program (SHRP 2) naturalistic driving study (NDS) data as an alternate data source to police-reported crash data to better understand roadway object crashes. The ... -
Development and Evaluation of a Cellular Vehicle-to-Everything Enabled Energy-Efficient Dynamic Routing Application
(MDPI, 2023-02-19)Cellular vehicle-to-everything (C-V2X) is a communication technology that supports various safety, mobility, and environmental applications, given its higher reliability properties compared to other communication technologies. ... -
Connected Vehicle Information for Improving Safety Related to Unknown or Inadequate Truck Parking
(Safe-D National UTC, 2022-10)Safety issues due to commercial truck parking shortages are a national concern. National hours-of-service (HOS) regulations limit drivers’ time on the road to increase safety by limiting fatigue. This requires drivers to ... -
Introduction to Communications in Transportation
(Safe-D National UTC, 2022-10)As new Intelligent Transportation Systems (ITS) and vehicle-to-everything (V2X) communication technology and protocols continue to emerge, additional training is needed for personnel working in the transportation sector. ... -
Curb Management Practices and Effectiveness in Improving Safety
(Safe-D National UTC, 2022-11)Curbside access has been a growing concern in cities over the last decade as on-demand passenger or goods transportation services have proliferated. Increased activity at key loading and unloading points may increase the ... -
NeTrainSim: A Network Freight Train Simulator for Estimating Energy/Fuel Consumption
(2023-01-10)Although train simulation research is vast, most available network simulators do not track the instantaneous movements and interactions of multiple trains for the computation of energy/fuel consumption. In this paper, we ... -
Speed Management Countermeasures: Gaps and Opportunities
(National Surface Transportation Safety Center for Excellence, 2023-02-01)The number of speeding-related crashes continues to be a major concern on U.S. highways, with 29% of roadway fatalities determined to be due to speeding (National Center for Statistics and Analysis, 2022). To reduce the ... -
In-depth Analysis of Crash Risk Associated with Eyes-off-road Duration by Road Control Type and Intersection Type
(National Surface Transportation Safety Center for Excellence, 2023-01-27)This study quantified the odds ratios (ORs) associated with eyes-off-road (EOR) durations on different road control and intersection types using the Second Strategic Highway Research Program Naturalistic Data Study (SHRP ... -
Lighting Strategies to Increase Nighttime Pedestrian Visibility at Midblock Crosswalks
(MDPI, 2023-01-12)In the last decade, pedestrian fatalities at night, especially at midblock locations, have been increasing at an alarming rate. Lighting is an effective countermeasure in reducing nighttime crashes. However, few studies ...
