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 15 of 15 for “"Highway capacity manual (HCM)"”.
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Development of a methodology for measuring delay-based passenger car equivalent for heavy vehicles at signalized intersections
… of heavy vehicles, is inappropriate in capacity analysis when delay is considered. Among other analysis procedures, the 1985 Highway Capacity Manual (HCM) and the 1994 HCM were found to be deficient for estimating the effects of heavy vehicles.
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Analysis of Freeway Weaving Areas Using Corridor Simulator and Highway Capacity Manual
… same direction along a significant length of the highway without the aid of traffic control devices . The traditional methods used for design and operational analysis of a highway is the Highway Capacity Manual (HCM). The traditional weaving methods in the highway capacity manual use road geometry …
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A comparative study of weaving sections in TRANSIMS and Highway Capacity Manual
… 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 (HCM). These traditional methods in the manual use road geometry and traffic volumes …
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Field measurement of ideal saturation flow rate from the highway capacity manual
… signalized intersection analyses performed with Highway Capacity Manual (HCM), the Pennsylvania Department of Transportation (PENNDOT) District 12-0 uses an ideal saturation flow rate of 1800 pcphgpl, which is less than the default value of 1900 pcphgpl provided by HCM. This is to account for the …
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Development of a Bicycle Level of Service Methodology for Two-Way Stop-Controlled (TWSC) Intersections
… performance measures for traffic on streets and highways. The Highway Capacity Manual (HCM) published by the Transportation Research Board (TRB) provides Level of Service (LOS) methodologies which enable engineers and planners to evaluate the overall performance of roadways and highways based on …
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Multimodal Assessment of Recurrent and Non-recurrent Conditions on Urban Streets
… revised in the latest edition of the Highway Capacity Manual (HCM 2010). Urban Streets, which include urban and suburban signalized arterial highways, typically serve the four modes of transportation (auto, transit, pedestrian and bicycle) and are frequently congested. Analyzing both …
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Advances in Traffic Signal Operations Management: Machine Learning Measurement and Transition Improvements Through High-Resolution Data
… delay measurement methods, specifically the Highway Capacity Manual (HCM) methodology, with a Machine Learning Vision System (MLVS). This comparison acknowledges the HCM's reliability in traffic analysis while highlighting the potential of MLVS in capturing nuanced traffic patterns and …
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Freeway speed-flow relationships under rain and congested conditions
… is provided in this study. Although the Highway Capacity Manual (HCM) provides some discussion on the impact of adverse weather on speed-flow relationships, these impacts are not quantified. Using data collected under rain and congested conditions, a procedure for estimating the average …
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Accounting for midblock pedestrian activity in the HCM 2010 urban street segment analysis
… Street segment analysis Chapter of the 2010 Highway Capacity Manual (HCM 2010) provides a methodology for analyzing automobile performance on signalized roadway segments within an urban roadway network. The methodology involves applying a platoon dispersion model to: a) predict the vehicle …
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Modeling Truck Motion along Grade Sections
… Currently, the American Association of State Highway and Transportation Officials (AASHTO) and Highway Capacity Manual (HCM) represent the state-of-art and state-of-practice procedures for the design of truck climbing lanes. These procedures only consider the tangent vertical profile grades in …
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Queue predictions at temporary work zones: modification and testing of an existing spreadsheet
… Transportation (OkDOT) and whose work zone flow capacity values are based on the 1994 Highway Capacity Manual (HCM, 1994). The scope of this research pertains only to the queue estimation worksheet of that spreadsheet tool, herein referred to as the OkDOT baseline version. This tool, based on …
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Formulations, Issues and Comparison of Car-Following Models
… thesis also attempts to address the question of capacity drop associated with vehicles accelerating from congested conditions. Specifically, the capacity drop proposition is analyzed for the case of a backward recovery (typical of a signalized intersection) and stationary shockwave (typical of a …
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Evaluation Of The Potential Benefits To Traffic Operations At A Toll Plaza With Express Etc Lanes
… all vehicles to reduce their speed from the highway speed to 35 mph. Express ETC lanes (sometimes referenced as open road tolling or non-stop tolling) allow vehicles to pass through the plaza at high speeds. Open road tolling is a concept that employs high speed toll lanes. A before and after …
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Comparison of stopped delay between field measurements and HCM 2010 estimations at actuated signalized intersections
The Highway Capacity Manual 2010 methodology of capacity analysis is widely used for performance evaluation of signalized intersections. However, very few studies have been performed to validate the HCM delay estimation model. This thesis aims to study the accuracy of the HCM 2010 delay estimation …
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A New Methodology for Evaluating the Effectiveness of Bus Rapid Transit Strategies
… transportation has become more desirable as capacity of existing roadways failed to keep up with rapidly increasing traffic demand. Buses are one of the most common modes of public transportation with low impact on network capacity, especially in small and congested urban areas. However, the …