Traffic counting devices are commonly used by governmental agencies and private companies in order to assess traffic patterns and the level of occupancy of roadway networks. The data provided by these devices normally encompasses traffic volumes, vehicle classes and vehicle speeds, and are used by traffic engineers in the planning, design and operations of transportation systems. An evaluation ...

This paper proposes a method for constructing an accurate traffic sign detector by retrospectively obtaining training samples from in-vehicle camera image sequences. To detect distant traffic signs from in-vehicle camera images, training samples of distant traffic signs are needed. However, since their sizes are too small, it is difficult to obtain them either automatically or manually. When dr...

Background: In recent decades, ‎due to the increase in users of roads and inadequate attention to the creation and development of appropriate passageways for traffic, there has been a growing trend in traffic accidents and casualties caused by them. The traffic accidents among pedestrians to take necessary measures in a timely fashion should be well studied. This study was conducted with th...

In this project, we propose to develop a tracking based traffic performance measurement system for roundabouts and intersections. There are two main goals for the project. One is to be able to collect all types of traffic performance measurements by tracking each individual vehicle and to improve performance measurement accuracy. The other goal is to focus on roundabouts and intersections as tr...

Traffic data of multiple vehicle types are important for pavement design, traffic operations and traffic control. A new video-based traffic data collection system for multiple vehicle types is developed. By tracking and classifying every passing vehicle under mixed traffic conditions, the type and speed of every passing vehicle are recognised. Finally, the flows and mean speeds of multiple vehi...

OVERVIEW: Traffic control systems for automobile traffic are being set up that allow more advanced traffic signal control according to traffic conditions and provide drivers with the real-time traffic information that they need to make their own driving decisions. The traffic information required by the driver includes traffic regulations, degree of congestion, parking space availability and so...

9 Traffic speed and length-based vehicle classification data are critical inputs for traffic operations, 10 pavement design and maintenance, and transportation planning. However, they cannot be 11 measured directly by single-loop detectors, the most widely deployed type of traffic sensor in the 12 existing roadway infrastructure. In this study, a Gaussian Mixture Model (GMM)-based 13 approach i...

background: in recent decades, ‎due to the increase in users of roads and inadequate attention to the creation and development of appropriate passageways for traffic, there has been a growing trend in traffic accidents and casualties caused by them. the traffic accidents among pedestrians to take necessary measures in a timely fashion should be well studied. this study was conducted with the go...

There is evidence of adverse health impacts from human exposure to traffic-related ultrafine particulate matter pollution. As more commuters are spending a significant portion of their daily routine inside vehicles, it is increasingly relevant to study exposure levels to harmful pollutants inside the vehicle microenvironment. This study is one of the first research efforts to combine detailed f...