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.
Results
Showing 1 to 18 of 18 for “"Transit Networks"”.
-
Planning transit networks with origin, destination, and interchange inference
… and financial circumstances at many transit agencies significantly constrain the bus planning process. Long-term planning focuses on major infrastructure projects, while short-term planning focuses on scheduling and minor service adjustments. Medium-range bus planning is given limited …
-
The design of public transit networks with heuristic algorithms : case study Cape Town
The Transit Network Design Problem (TNDP) is well-researched in the field of transportation planning. It deals with the design of optimized public transportation networks and systems, and belongs to the class of non-linear optimization problems. In solving the problem, attempts are made to balance …
-
Redesigning and improving the efficiency of bus transit networks using automatically collected data : the case of Gipuzkoa, Spain
Transit agencies around the world are adopting Automatically Data Collection Systems (ADCS) to carry out standard tasks in the management of their networks. Many of these agencies have taken further steps in the use of this data to support and enhance the performance of many other functions under …
-
Detecting Public Transit Service Disruptions Using Social Media Mining and Graph Convolution
… we have seen an increase in the number of public transit service disruptions due to aging infrastructure, system failures and the regular need for maintenance. With the fleeting growth in the usage of these transit networks there has been an increase in the need for the timely detection of such …
-
Optimal Configurations for Urban Transit: A Study on Bus and Express Network Design via Analytical Approaches and Mathematical Programming
The Public Transit Network Design Problem (PTNDP), particularly the Public Bus Transit Network Design Problem (PBTNDP) and Express Transit Network Design Problem (ETNDP), is a key area in transportation research. Analytical approaches and mathematical programming are widely used methodologies in …
-
The Measurement and Evaluation of Urban Transit Systems: The Case of Bus Routes
… measurement and efficiency analyses for transit industries have been gaining significance due to severe operating conditions and financial constraints in which these transit agencies provide service. In this research, we present an approach to measure the performance of Urban Transit …
-
An Optimization-Based Qualitative/Algorithmic Approach to Transit Service Planning: Addressing the MBTA Green Line Extension
When changes to transit operations are necessary to accommodate changes in the network, demand levels, or agency resources, there is a risk that more obvious solutions (e.g., adjusting headways without changing service patterns) may be unnecessarily detrimental to the quality of the service …
-
Under construction: infrastructure and modern fiction
… challenges posed by infrastructure by bringing transit networks, sanitation systems, and electrical grids and the histories of their development and use into the foreground. These writers call attention to the political dimensions of built environments, revealing the ways infrastructures …
-
Rail transit OD matrix estimation and journey time reliability metrics using automated fare data
… fare collection (AFC) data greatly enhances a transit planner's ability to understand and characterize passenger travel demands which have traditionally been estimated by manual surveys handed out to passengers at stations or on board vehicles. The AFC data also presents an unprecedentedly …
-
Metrohelper: A Real-time Web-based System for Metro Incident Detection Using Social Media
In recent years the usage of public transit services has been rapidly increased, thanks to huge progress on network technologies. However, the disruptions in modern public transit services also increased, due to aging infrastructure, non-comprehensive system design and the needs for maintenance. …
-
Advances in data-driven models for transportation
… there has been a renewed interest in transit planning to improve service quality and stem declining ridership. However, it often takes months of manual planning for operators to redesign and reschedule services in response to changing needs. To this end, we provide four models of …
-
Advancing accessibility : public transport and urban space
… concepts can improve public involvement in transit planning. Suitability for broad public participation applications, however, requires accessibility to be easily customizable and tailored to constraints that users find salient. Constrained accessibility metrics are the second focus of this …
-
Modeling inundation impacts on transportation network performance : a GIS and four-step transportation modeling analysis
… trips and the performance of both the auto and transit networks. I then demonstrate how this method can be applied to examine different infrastructure projects in the future, modeling two different demographic scenarios for the year 2030 with two different BRT alignments. The goal is to evaluate …
-
Efficient learning and planning using spatial side information
… as stochastic control processes with unknown transition probabilities or unknown transition times. Specifically, we consider the problems of reward maximization in grid-world environments with unknown, stochastic dynamics and travel time minimization in urban transit routing problems with …
-
Analysis of Association Between Demographic, Socioeconomic, and Built Environment Factors and Pedestrian Safety Using Traditional and AI Approaches
… the impact of socio-economic, built-environment, transit, and trip characteristics on pedestrian crashes in the Texas cities of Austin, San Antonio, and Dallas. It seeks to identify key factors influencing pedestrian crash risks across CBGs and evaluates the effectiveness of machine learning …
-
Simulation-based optimisation of public transport networks
… them. A SBO model for designing public transport networks is developed in this dissertation. The context of the research is the MyCiTi Bus Rapid Transit (BRT) network in the City of Cape Town, South Africa. A multi-objective optimisation algorithm known as the Non-dominated Sorting Genetic …
-
On Modeling Dependency Dynamics of Sequential Data: Methods and Applications
… characterization for various topics such as transit service disruption detection, early event detection on social media, technology opportunity discovery, and traffic incident impact analysis. In particular, four specific applications are studied with four proposed novel methods, including a …
-
Towards A Robust Integrated Urban Mobility System: Public Transit and Ride-Sharing Systems
… for the future, with a focus on the public transit and ride-sharing systems. While the advent of shared mobility platforms such as Uber and Lyft, along with Autonomous Mobility-on-Demand (AMoD) services like Waymo and Cruise, have revolutionized urban travel, public transit systems remain …