Median U-turn intersection treatment (MUTIT) has been considered an alternative measure to reduce congestion and traffic conflict at intersection areas. The MUTIT is sometimes difficult to implement in the field because it requires wide median on arterials for U-turn vehicles. The objective of this study is to introduce an unconventional U-turn treatment (UUT) for intersections which requires l...

The intense exponential growth of the population in the United States and added vehicles to the roads has transportation planners working on solving the congestion issue. People have to travel longer distances and spend more time on the roads causing congestion of the current networks. Thus, the demand for new roadway and intersection design is a high priority, as wasted fuel and travel time in...

STEP-NC (ISO 14649) is becoming a promising standard to replace or supplement the conventional G-code programs based on ISO 6983 due to its feature based machine independent characteristics and its centric role to enable efficient CAD/CAM/CNC interoperability. The re-use of Gcode programs is important for both manufacturing and capitalization of machining knowledge, nevertheless the conversion ...

Most existing studies on autonomous intersection management (AIM) often focus algorithms to accommodate conflicts among vehicles by assuming that the entrance lane and exit of are exogenous inputs. This paper shows allowing lanes be optimized can significantly improve traffic efficiency. In particular, this proposes “all-direction” lanes, where left-turn, through, right-turn is all allowed at s...

The left turn lane capacity is highly influenced by the presence of pedestrians under shared signal phasing. Pedestrian crossing time can be pedestrian platoon maneuver influence traffic settings, crosswalk length and bidirectional interactions pedestrian, due to that turning vehicles movement may significantly affected. However, existing estimation methods lanes did not consider those factors....