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Variability of Peak Hour Factor at Intersections
Transportation Research Record: Journal of the Transportation Research Board, 2005A peak hour factor (PHF) is used to convert hourly traffic volume into the flow rate that represents the busiest 15 min of the rush hour. Past research indicated that PHF had a strong impact on traffic analysis results. The common practice is to use a default value recommended by national or local guidelines or to use limited field observations.
Andrew P. Tarko +1 more
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On the Accuracy of the Simple Peak Hour Approximation for Markovian Queues
Management Science, 1995We empirically explore the accuracy of the simple stationary peak hour approximation (SPHA) for estimating peak hour performance in multiserver queuing systems with exponential service times and periodic (sinusoidal) Poisson arrival processes. We show that the SPHA is very good for a range of parameter values corresponding to a reasonably broad ...
Linda V. Green, Peter J. Kolesar
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Energy storage sizing for peak hour utility applications
2015 IEEE International Conference on Communications (ICC), 2015In future smart grids, energy storage systems (ESSs) are expected to play a key role in reducing peak hour electricity generation cost and the associated level of carbon emissions. Considering their high acquisition, operation, and maintenance costs, ESSs are likely to serve a large number of users. Hence, optimal sizing of energy ESSs plays a critical
Islam Safak Bayram +3 more
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The Battle for Ratings: Peak-Hour Schedules
2001Increased choice is usually advanced as the main purpose of technological change in broadcasting to give the audience more channels from which to select. It is therefore assumed that greater diversity of content or presentation will attract more interest and this, combined with the growth of leisure time, should enlarge audiences and total viewing.
George Wedell, Bryan Luckham
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Development of Peak-Hour and Peak Directional Factors for Congestion Management Systems
Transportation Research Record: Journal of the Transportation Research Board, 1996A statewide congestion management system involves the application of large amounts of traffic data to a large number of roadway links at a detailed level. A procedure has been developed to identify congestion on roadway links at a macroscopic level using daily volume counts. Daily volume counts are used to determine a.m. and p.m.
Nishantha R. Gunawardena +2 more
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Personal exposure to black carbon during commuting in peak and off-peak hours in Shanghai
Science of The Total Environment, 2015A study on a commuter's exposure to black carbon (BC) in five different traffic modes (taxi, bus, subway, cycling and walking) was conducted in Xuhui District, Shanghai. A commuter's real-time exposure concentrations were recorded by MicroAeth AE51 BC monitors, and the average BC exposure concentration and inhalation dose were analyzed.
Bo, Li +5 more
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Peak-Hour Rail Demand Shifting with Discrete Optimisation
2019In this work we consider an information-based system to reduce metropolitan rail congestion in Melbourne, Australia. Existing approaches aim to reduce congestion by asking commuters to travel outside of peak times. We propose an alternative approach where congestion is reduced by enabling commuters to make an informed trade-off between travel time and ...
John M. Betts +6 more
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Comparison of Ground-Borne Vibration Induced by Railway Within Peak and Non-peak Hours
2021Over the years, the Malaysian government is committed to improve public transportation system by expanding its railway transportation system especially throughout the areas within Kuala Lumpur and Klang Valley. This is to reduce traffic congestion and at the same time provide passengers with a more comfortable and time-saving means of transportation ...
Mohd Khairul Afzan Mohd Lazi +3 more
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Effect of Off-peak Hour Toll Reduction on Toll Roads
International Journal of Intelligent Transportation Systems Research, 2010A transport economic model was developed to evaluate changes in total travel costs on congested toll roads by dispersing peak-hour traffic to the pre-peak hours or post-peak hours with a toll discount. To empirically analyze the effectiveness of the early-morning and daytime toll discount, early departure cost and late arrival cost were estimated and ...
IMANISHI, Yoshikazu +2 more
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Peak‐Hour Road Congestion Pricing: Experimental Evidence and Equilibrium Implications
Econometrica, 2023Developing country megacities suffer from severe road traffic congestion, yet the level of congestion is not a direct measure of equilibrium inefficiency. I study the peak‐hour traffic congestion equilibrium in Bangalore. To measure travel preferences, I use a model of departure time choice to design a field experiment with congestion pricing policies ...
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