Roads and cities represent huge sources of degradation for adjacent ecosystems regarding nutrient cycling, energy, water flow and species composition. In this study we test the hypothesis that distance from roads and cities is associated with habitat loss and fragmentation in the caatinga vegetation--a dry forest to scrub vegetation that covers ca. 736,000 km2 of northeast Brazil. The study sit...

Emissions of resuspensed particles from paved roads (RPR) have received an increasing attention in air quality modeling, since chemistry transport models are generally unable to reproduce particulate levels near road traffic. However, among the models operated in the forecasting mode in Europe, there is a lack of systems including the contribution of RPR on an hourly basis. Therefore, this cont...

Suppose you want to take a car for a test drive. You prefer a smooth ride, so you are probably particularly interested in the car’s suspension system. Where do you take your car? Will you take it for a ride on a well-maintained highway, or will you select worn-down roads with cobblestones, potholes and speed bumps? The answer is clear: you can’t test the car’s suspension system if you don’t cha...

The use of artificial neural networks in the domain of autonomous vehicle navigation has produced promising results. ALVINN [Pomerleau, 1991] has shown that a neural system can drive a vehicle reliably and safely on many different types of roads, ranging from paved paths to interstate highways. Even with these impressive results, several areas within the neural paradigm for autonomous road foll...

Road is a means of access for humans to move from one place another, connecting and serving as transportation infrastructure. At all times, asphalt roads are passed by road users, including small, medium, large vehicles. However, conditions not always smooth often there damages in certain parts the road. Factors such water, weather, temperature changes, unstable soil conditions, air temperature...

Abstract Potholes on roads pose a major threat to motorists. Driving over pothole has the potential cause serious damage vehicle, which in turn may result fatal accidents. Currently, many detection methods exist. However, these do not utilize deep learning techniques detect real-time, determine location thereof and display its map. The success of determining an effective method, includes aforem...

Interpreting laser data to allow autonomous robot navigation on paved as well as dirt roads using a fixed angle 2D laser scanner is a daunting task. This paper introduces an algorithm for terrain classification that fuses four distinctly different classifiers: raw height, step size, slope, and roughness. Input is a single 2D laser scan and output is a classification of each laser scan range rea...