The road is one of the transportation infrastructures that have a role as connector between regions, and also contributes to strengthening growth economy, society, tourism, culture region. Today, tourism activity in Indonesia growing rapidly, marked by increasing number tourist areas being built, which Arak-Arak natural area Bondowoso Regency, East Java. Located hilly with an altitude 345 meter...

Curvy roads are important subjects for many applications, because of their spatial geometry. Digital curve identification is easier from continuous objects than from discrete objects, such as roads extracted from remote sensing data. Use of high spatial resolution images can lead to an increase in the accuracy of the detection , and it also gives the possibility to detect curvy segments from th...

It is still an open problem to extract road feature from high-resolution remote sensing image, although this topic had been intensively investigated and many methods had been put forwards. All works for this thesis are focused on modern urban road and include the following four steps: image pre-processing, threshold calculation, feature extraction for straight line and curved line, target recon...

Road tunnels are vital infrastructures providing underground vehicular passageways for commuters and motorists. Various quantitative risk assessment (QRA) models have recently been developed and employed to evaluate the safety levels of road tunnels in terms of societal risk (as measured by the F/N curve). For a particular road tunnel, traffic volume and proportion of heavy goods vehicles (HGVs...

This paper presents the results of nonlinear numerical simulations carried out to analyze rainwater infiltration through a road embankment structure using the finite element method (FEM) technique. The analysis of this paper includes a simplification of a crosssectional road embankment located in Santander (Northern Spain) and considers different realistic hydraulic material parameters, accordi...

This paper presents a step-wise method for extracting powertransmission lines and towers from vehicle-borne light detection and ranging (lidar) data. First, this method estimates road ranges with regard to incidence angles and separates off-road points from road-surface points by applying elevation-difference and slope criteria to the road ranges scan-line by scan-line. Then, three filters, in ...

This is a study on the development of a practical road disaster management system for various natural disasters by applying risk management techniques. Risk is defined here as the product of the likelihood of disastrous event and its consequences. The road facilities targeted are bridges, embankments, tunnels, slopes, and so forth. Various natural disasters such as earthquakes, tsunamis and hea...