The increasing demand for a fast, efficient and low cost algorithm for extraction of 3D urban features was the motive behind this work. In this paper we present a new technique to reconstruct buildings with detailed roofs in urban areas using airborne laser scanning altimetry data. We have tried to show that dense airborne laser scanning data is sufficient for detailed 3D reconstruction of urba...

This long-lasting point in his life due to economic developments, social and cultural development of the Industrial Revolution, the foundation has been transformed. Today, the need for rehabilitation and restoration of these islands what the city increases, the need to develop a coherent and logical connection between the old and new areas to preserve and enhance the integrity and identity of...

Due to the inherent discrete nature of sensing, interpolation is a key activity in sensing. Interpolation in urban computing faces an unprecedented inference issue that was not present in large scale traditional sensing environments. Obstacles such as buildings and walls are prevalent in urban sensing, and it is important to consider them in urban sensing interpolation. This paper introduces an...

This study aims to examine the impact of user sensory stimuli aspects (comfort, passive and active engagements, relaxation, discovery) on efficient use urban squares in Erbil, Iraq, through public interaction. A questionnaire survey (298 respondents) was employed collect users’ opinions validated expert interviews (13 interviewees) field observations. PLS-SEM used as research method this analys...

A three-staged least squares translog cost function is estimated for 13 heavy-rail and nine light-rail United States urban mass transit systems for the period 1985-1991. Firm output is taken to be endogenous. Large economies of density are found in operating costs. These economies become even more substantial when the cost of way and structure maintenance and capital costs are incorporated. How...