Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 75 for “"TRAFFIC VOLUMES"”.
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A linear programming approach for synthesizing origin-destination (O-D) trip tables from link traffic volumes
… this information to facilitate diversion of traffic in real time, in the event of congestion-causing incidents such as accidents. The O-D trip table information is a key to successful diversion planning, where user destinations are considered in developing the plans. Traffic volumes on the …
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Dynamic estimation of origin-destination trip-tables from real-time traffic volumes using parameter optimization methods
… (O-D) trip-table based on entering and exiting traffic volume data for a given freeway section. These tables help in on-line control of traffic facilities, and consequently, are of significant use in alleviating traffic congestion. The dynamism of the approach captures the variations in the …
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A linear programming approach for synthesizing origin-destination (O-D) trip tables based on a partial set of link traffic volumes
… even in a "partial set" of available link volumes to estimate an O-D trip table. Recently, a new approach to synthesize a trip table from observed link flows on the network was developed at Virginia Tech. This approach employs a linear programming formulation and is based on a …
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Decision support system for locating traffic information dissemination sites along freeway corridors
… based on both recurrent and non recurrent traffic congestion situations. The methodologies assume that motorists behave rationally and will divert from congested freeways to uncongested arterials based on the user equilibrium traffic assignment criteria. The utility of information …
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Dynamic route choice in hurricane evacuation
… different between two time intervals. Observed traffic count data from hurricane Katrina evacuation was used to validate the model. Comparison of traffic volumes predicted by the model with actual traffic volumes from hurricane Katrina shows error percentages of 17.5, 0.01, and 28 percent of …
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Modeling the Effects of Traffic Reduction on the Severity of the COVID-19 Epidemic in U.S. States
… was to determine the relationship between traffic movements and COVID-19 infections, and ultimately hospitalizations and deaths, throughout various U.S. States using the infection curve and equations from the Susceptible-Infected-Recovered (SIR) model.</p> <p>As a result of state and …
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Analysis of right-turn lane length in left-hand traffic countries at signalised intersections of urban roads
… turn lane length of urban roads in left-hand traffic countries, such as Australia, UK and India (left-turn lane length in right-hand traffic countries such as USA), at signalised intersections encounters two main geometric features namely, deceleration length and storage length. The literature …
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Stochastic numerical approximation approaches for estimation of traffic volume under travel demand uncertainties
… assignment does not account for uncertainties in traffic demands. These point-estimate based solutions often results in large differences between forecasted and actual traffic volumes thereby imposing huge financial burdens upon development agencies. In this work, stochastic treatment has been …
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Lead, cadmium, nickel and zinc concentrations in soil and vegetation associated with highways of different traffic densities
… was collected along four highways of different traffic volumes, at varying distances from the road, and at two control areas. Four sampling periods were conducted throughout the course of a year from August, 1976 to June, 1977. Soil and vegetation samples were tested for concentrations of lead, …
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A comparative study of weaving sections in TRANSIMS and Highway Capacity Manual
Weaving is defined as the crossing of two or more traffic streams traveling in the same direction along a significant length of the highway without the aid of traffic control devices. The traditional methods used for the design and operational analysis of a highway is the Highway Capacity Manual …
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Safety Investigation of Crash Rates During Hurricane Evacuations
… key variables such as the number of crashes, traffic volumes, duration of each period under analysis, and roadway segment lengths for each hurricane. Evaluating the crash rate per million vehicular miles was a crucial analysis tool and finding of this research, enabling a comprehensive …
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Verification of asphalt concrete performance prediction using level 2 and level 3 inputs of mechanistic-empirical pavement design guide for flexible pavements of the state of New Jersey
… a broad range of soil, environmental conditions, traffic volumes and pavement structures observed in the state of New Jersey. Predicted performance of various distresses, such as rutting, alligator cracking, longitudinal cracking, thermal cracking and International Roughness Index (IRI) were …
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Quantifying the Impact of Truck Only Lanes on Vehicular Emissions on a Limited-Access Highway
… and validated against historical and present traffic volumes obtained from Caltrans with good results using several validation measures. It was found that CO<sub>2</sub> emissions did decrease between 1998 and 2012 (pre and post lane addition), but this effect was shown to be different for the …
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Managing pavement in a busy urban highway network
… planning horizon changes in peak-period traffic volumes, pavement conditions, vehicle miles traveled, and volatile organic compounds emissions. When used in optimal control exercises, this model determines the sequence and timing of maintenance, lane expansion, and transportation demand …
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Calibration of a FOSIM Model for a Section of the N2 Freeway in Cape Town: Weaving Section at an Off-Ramp
… the vehicle used and road geometry. Traffic models must account for this variation in behaviour to properly analyse this complex reality. Typically, the variation is modelled by distinguishing between different ‘vehicle-driver combinations', whose behaviour is established by the …
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Investigating characteristics in a spatial context that contribute to where bicycle accidents occur
… probability increases with the presence of high traffic volumes, School zones and driveways.
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Developing crash modification factors for operational parameters on urban freeways
… to occur. However, it has been shown that as traffic volumes continue to increase across the United States, 52% of drivers feel less safe on the roads today more than they did five years ago and that the American public feels that traffic safety is a serious problem that needs both the …
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Machine Learning–Based Detection of Network Failures in Core Network Cellular Data
… of mobile networks and the large volume of traffic data generated by multiple network elements make it difficult for Mobile Network Operators (MNOs) to accurately identify operational irregularities and reliably distinguish true network failures from normal network traffic. This study …
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Capacity Modeling of Freeway Weaving Sections
… distribution of simulated and field observed traffic volumes categorized by O-D pair on nine weaving sections in the Los Angeles area. The results demonstrate a high degree of consistency between simulated and field observed traffic volumes within the various weaving sections. Subsequently, …
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