Lane estimation for autonomous driving can be formulated as a curve estimation problem, where local sensor data provides partial and noisy observations of spatial curves. The number of curves to estimate may be initially unknown and many of the observations may be outliers or false detections (due e.g. to to tree shadows or lens flare). The challenges lie in detecting lanes when and where they ...

Wendong Zhang and Mike E. Duffy 2 1: Assistant Professor, Department of Economics, Iowa State University 3 478C Heady Hall, 518 Farm House Lane, Ames, Iowa, 50011 4 515-294-2536, 5 [email protected] 6 2: Professor Emeritus, Department of Economics, Iowa State University 7 475 Heady Hall, 518 Farm House Lane, Ames, Iowa, 50011 8 [email protected] 9 10 forthcoming at Journal of American Societ...

Abstract This paper describes the performance of flexible pavement using KENLAYER and Highway Development Management (HDM-4) software for urban roads. study includes area four-lane two-lane roads at Hyderabad city, such as Gandi Maissama to Bachupally (GB), Nizampet (BN), Miyapur Bachuapally (MB), JNTU Pragathi Nagar (JP). The distress data like rutting, fatigue, pothole, patches, edge drop eac...

Bicycle route and safety datasets for 2963 commuter cyclists in Ottawa and Toronto, Canada containing cyclist characteristics, collision and fall history, and regular commute route, are used for this analysis. Previous analyses found sidewalk collisions, fall and injury rates significantly higher on sidewalks versus roads or paths. Of the 52 events reported on sidewalks none were reported to po...

There are various means of monitoring traffic situations on roads. Due to the rise artificial intelligence (AI) based image processing technology, there is a growing interest in developing systems using camera vision data. This study provides method for deriving information installed at an intersection improve system The uses deep-learning-based approach (YOLOv4) vehicle detection and type clas...

Long uphill stretches of single-carriageway rural roads with one lane per travel direction may reduce the Level Service (LoS), due to decreased speed heavy vehicles. In those circumstances, a slowdown traffic, resulting in formation platoons, be generated difficulty performing overtaking maneuvers safely. To solve this critical issue, an additional (climbing) for slow vehicles included road pla...

Unpaved roads are one of the most relevant causes of erosion process in rural regions. Locating unpaved roads in low-resolution satellite images is not a trivial task. Although they have the spectral response of bare soil, their spatial width is often far below the pixel size. Therefore, the pixels crossed by unpaved roads have a different spectral response over the scene depending on the surro...

PURPOSE Despite increasing evidence that the physical environment impacts on physical activity among urban-dwellers, little attention has been devoted to understanding this relationship in rural populations. Work in this area is further hindered by a lack of environmental measures specifically designed for rural settings. This qualitative study aimed to explore the salience of urban physical ac...

Many rural roads in Africa are ‘returning to the bush’ because of inadequate maintenance. This is not helped by development loans which encourage construction of new roads and rehabilitation of existing infrastructure rather than better value ongoing maintenance. Much of the problem lies in the technical arguments put to decision makers. Here we see the argument put in a way that nontechnical p...