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 511 for “"Travel Time"”.
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Travel Time Estimation on Arterial Streets
Estimation of real-time travel times on arterial streets has been a challenging task due to the intersection control delay as well as bottleneck delay from the downstream link. Therefore, few transportation professionals have conducted research at utilizing the dynamic flow methods to estimate …
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TRAVEL TIME AND THE LIABILITY OF DISTANCE
… This thesis develops a new construct, dyad travel time, which specifically measures the depletion of manager time that is caused by traveling between non-collocated sites. Manager time is a scarce and valuable resource and, ceteris paribus, its use without added productive output, by …
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Crowdsourcing traffic data for travel time estimation
Travel time estimation is a fundamental measure used in routing and navigation applications, in particular in emerging intelligent transportation systems (ITS). For example, many users may prefer the fastest route to their destination and would rely on real-time predicted travel times. It also …
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The cost of bus travel time variability
… of reliability is a low level of day-to-day travel time variability (TTV). To obtain funds for reducing TTV, it is necessary to give evidence for the benefits from such improvement, but current tools for estimating the cost of TTV are insufficient. This thesis covers issues that arise when …
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Real-Time Short-Term Travel Time Prediction
Real-time short-term travel time prediction is a critical component of the Intelligent Transportation System (ITS) and an important element of the Advanced Traveler Information System (ATIS). Accurate and reliable travel time prediction enables both user and system controller to be well informed of …
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Modeling travel time uncertainty in traffic networks
Uncertainty in travel time is one of the key factors that could allow us to understand and manage congestion in transportation networks. Models that incorporate uncertainty in travel time need to specify two mechanisms: the mechanism through which travel time uncertainty is generated and the …
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Urban Spatial Structure and Household Travel Time
… of the cited harms of sprawl is the alleged travel time burden that it imposes on its residents. Previous research has tested the relationship between the sprawl of business activity and travel times by examining only its effects on commuting times and has concluded that people do not …
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Understanding bus travel time variation using AVL data
… applications that predict bus arrival times to service-provider-facing applications that monitor network performance and diagnose performance failures. However, most other researchers' analyses tend to use data that they acquired through negotiations with transit agencies, adding a …
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Locations of AVI System and Travel Time Forecasting
… system, including the AVI site location problem, travel time forecasting, the study of reliability and accuracy of the forecasted travel time. This thesis serves as a further research toward the modeling of AVI systems in which the effects of AVI site location, AVI site density, travel time …
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Empty Railcar Repositioning Subject to Travel Time Uncertainty
… of breakdown or heavy traffic, variation on travel times happens to be the main cause of uncertainty in railroad scheduling and must be taken into account to suggest a robust planning. This thesis presents the linear program used in a prototype tool for the optimization of empty railcar …
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Minimizing Travel Time Through Multiple Media With Various Borders
… in a common calculus problem wherein travel time is minimized across two media separated by a single, straight boundary line. We then discuss the correlation of this problem with physics via Snells Law. The first core chapter takes this idea and develops it to include the concept of …
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A System for Travel Time Estimation on Urban Freeways
Travel time information is important for Advanced Traveler Information Systems (ATIS) applications. People traveling on urban freeways are interested in knowing how long it will take them to reach their destinations, particularly under congested conditions. Though many advances have been made in …
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Travel time inversion of multi-offset vertical seismic profiles
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1985.
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Freeway Travel Time Estimation Based on Spot Speed Measurements
… one of the kernel components of ITS technology, Travel Time Estimation (TTE) has been a high-interest topic in highway operation and management for years. Out of numerous vehicle detection technologies being applied in this project, intrusive loop detector, as the representative of spot …
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Development of dynamic recursive models for freeway travel time predictions
… the development of a sound prediction model for travel times is desirable. A comprehensive literature review about existing prediction models was conducted by investigating the advantages, disadvantages, and limitations of each model. Based on the features and properties of previous models, the …
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Link travel time estimation based on connected vehicle probe data
… vehicle probe data (CVPD) model to estimate travel time on urban arterials. This research applies VISSIM to simulate probe vehicles that can generate and assemble snapshots via installed On-Board Unit (OBU). Each snapshot, which can include link identification, instantaneous speed, location …
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Incident-Related Travel Time Estimation Using a Cellular Automata Model
… of this study was to estimate the drivers' travel time with the occurrence of an incident on freeway. Three approaches, which were shock wave analysis, queuing theory and cellular automata models, were initially considered, however, the first two macroscopic models were indicated to …
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Quantifying Road User Costs with Heterogeneous Value of Motorists' Travel Time
… operating costs, accident costs, and value of time (VOT). The term ?value of time? refers to monetary equivalent of travel time wasted due to rehabilitation projects. In current practice, STAs assume VOT as homogeneous within their respective states. This leads to inaccurate RUCs calculations …
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A travel time study of P waves using deep-focus earthquakes,
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1972.
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