Neglecting environmental considerations in civil engineering projects, especially in the design and construction of roads, can cause extensive damage to human societies and ecosystems. One of the most critical issues in road design is selecting an optimal alignment that m...
are strong relationships between the crash frequency and the consistency variables: the ratio of curve radius to the average radius of the adjacent curves (as the alignment consistency variable) and the difference between expected and existing superelevation (as the vehicle stability consistency variable...
Reliability-Based Methodology to Calculate Lateral Clearance on Three-Dimensional Alignment On horizontal curves, drivers may have their available sight distances restricted by a lateral obstruction such as a building or side slope. The minimum ho... M Sarhan,Y Hassan - Transportation Research Board ...
6 Open-top vise wrenches are designed to center the pipe better every time and provide an excellent view of the tool joint. 5 Heavy-duty anchor system keeps the JT5 secure during operation, reduces wear on pipe threads and enables better alignment of pipe during makeup. JT5 HORIZONTAL ...
(operating speed) and alignment. This study proposed four speed predicting models (linear or curve fitting models), respectively, of cars and trucks. Results of modeling showed that deflection angle and radius of curve were the two most important parameters for predicting ...
These limitations are related to experimental Site selection with different combinations of alignment elements, traffic, and accident data. A pilot study showed significant results and gave essential insights into the full-scale research plan. The results are expected to benefit ...
The obtained DOM and DEM were then registered to ensure precise alignment within the same coordinate system and achieve a consistent ground resolution. Following this, the common monitoring region of the DOM and DEM was cropped to ensure consistent coverage. This process provided accurate data for ...
Errors in image alignment are apparent in the form of disjoint linear features such as roads and coastlines (Figure 1). In the face of these errors, the question arises: how trustworthy is the horizontal positional information in this archive? Large errors in georegistration would limit the ...