On-ramps are considered to be one of the common traffic bottlenecks. In order improve operation efficiency on-ramps, scholars worldwide have proposed various vehicle merging strategies. this study, we designed different rules express three collaborative strategies and studied their impact on on-ramp systems. Cellular automata models were used simulate systems under situations, average speed flo...

The Casco Viejo of Panama is an area with great potential to develop a pedestrian zone, as it attractive for travelers visit. For this development be carried out safely, recommended that the site analyzed based on superblock criteria ensure pedestrians can move through streets in free and accessible way regardless their physical condition. Hence, necessary evaluate current state road infrastruc...

This paper aims to evaluate and compare the effects of different methods of ramp metering on the operational conditions of traffic flow at three levels: the network level (including the freeway and its connected ramps), the entrance ramp, and the upstream segment of the entrance. To achieve this aim, one of the most important urban freeways in the metropolis of Isfahan was selected. The traffic...

Abstrac&--In an effort to relieve peak hour congestion on freeways, various ramp metering algorithms have been employed to regulate the inputs to freeways from entry ramps. In this paper, we consider a freeway system comprised of a freeway section and its entry/exit ramps, and formulate the ramp control problem as a dynamic optimal process to minimize the total time spent in this system. Within...

The perception of luminosity is thought to depend upon the intensity of the stimulus: a surface begins to appear self-luminous when it emits or reflects a certain amount of light. This is known as the luminosity threshold. It is a common opinion among vision scientists that such a threshold is correlated to the intensity of a perceptually white surface, in the sense that only an area of the vis...

After the injection of beam into RHIC the beam energy is ramped from 10.8 GeV/u to 108 GeV/u and the beta function of the interaction points is reduced from 10 meters to 1 meter. The set points for magnet power supplies and RF cavities is changed during such ramps in concert. A system of Wave Form Generators (WFGs), interconnected by a Real Time Data Link (RTDL) and and Event Link is used to co...

ITE JOURNAL / MARCH 2001 THE ORLANDO-ORANGE COUNTY Expressway Authority (OOCEA) operates a 132-kilometer toll-road system in Orange County, FL, USA. This network includes 10 mainline toll plazas and 38 tollbooth ramps in operation. In mid-May 1994, the state-of-the-art electronic toll collection (ETC) system known as E-PASS that utilizes automated vehicle identification (AVI) technology was ins...

Throughout RHIC Run-9 (polarized protons) and Run10 (gold), numerous modifications to the Baseband Tune (BBQ) system were made. Hardware and software improvements resulted in improved resolution and control, allowing the system to overcome challenges from competing 60Hz mains harmonics, other spectral content, and other beam issues. Test points from the Analog Front End (AFE) were added and con...