In this paper we propose to simultaneously detect lane and pavement boundaries by fusing information from both optical and radar images. The boundaries are described with concentric circular models, whose parameters are compatible and will result in better conditioned estimation problems than previous parabolic models. The optical and radar imaging processes are represented with Gaussian and lo...

One of the methods for the improvement of soil against the tensile stresses is using the artificial supplements in soil such as metal belts or nets, polymer materials and natural fibers. Technically this method is called the reinforced of soil.  When a pavement is located on soft soil, great deformations can occur as a result of the crossing of traffic load in superstructure layers of the body....

Surveying the condition of pavement is one most important processes in managing road network. The information collected during these surveys allows for calculation Pavement Condition Index, which a derivative cumulative qualitative indicator that evaluates various characteristics and defects. Deterioration modelling measured indicators calculated indices critical element its accurate prediction...

Finite element method in pavement analysis is a type of mechanistic analysis that has widely been used by road and transportation engineers these days. This method is used with related programs such as ABAQUS/CAE which is one of the powerful software on this task. Modeling in this software has been developed from 2D static models to 3D dynamic models which are closer to reality due to the more ...

A decision model for pavement management has been developed herein based on linear programming formulation. Markov transition probability matrices are introduced to model the deterioration process of the road sections. To every type of road surfaces and class of traffic amount belongs a certain Markov matrix. The presented model and methodology is used to determine the optimal rehabilitation an...

• The fifth objective of the AASHO Road Test was as follows: "To develop instrumentation, test procedures, data, graphs and formulas which will reflect the capabilities of the various test sections; and which will be helpful in future highway design in the evaluation of the loadcarrying capabilities of existing highways and determining the most promising areas of further highway research." It w...

This paper presents a road distress detection system involving the phases needed to properly deal with fully automatic road distress assessment. A vehicle equipped with line scan cameras, laser illumination and acquisition HW-SW is used to storage the digital images that will be further processed to identify road cracks. Pre-processing is firstly carried out to both smooth the texture and enhan...

The purpose of this paper is to present the results of various studies which have been made concerning lateral placement of vehicles on rural roads. The term “lateral placement,” as it is used throughout this report, is construed to mean the position of the vehicle on the road in relation to either the right edge of the pavement or to the centerline of the road. Only two-lane roads will be cons...

Recycling road pavement materials allows for a more sustainable use of raw and contributes to creating circular economy [...]