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Willem Klumpenhouwer

Willem Klumpenhouwer
Klumpentown Consulting

Doctor of Philosophy
Transportation research and data analytics consultant, focused on performance of transit systems.

About

28
Publications
8,215
Reads
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107
Citations
Introduction
I help planners, policy makers, and advocates better understand their transit systems with thoughtful research, advanced data analytics, and compelling communications.
Additional affiliations
January 2015 - April 2017
University of Calgary
Position
  • Research Assistant
March 2020 - present
University of Toronto
Position
  • PostDoc Position
September 2014 - June 2018
University of Calgary
Position
  • PhD Student
Education
September 2014 - June 2018
University of Calgary
Field of study
  • Civil Engineering - Transportation
September 2009 - April 2013
University of Guelph
Field of study
  • Theoretical Physics

Publications

Publications (28)
Article
Full-text available
For a scheduled bus route adopting the holding control strategy, determining the optimal number and location of time points is considered a long-standing but elusive problem. In this paper, we take a new approach to the problem by developing a Markov Chain model to accurately capture the stochastic nature of a bus as it moves along a route in mixed...
Article
Full-text available
Passenger railways face reliability challenges resulting from shared track with other trains, limited infrastructure capacity, and rolling stock and trackway that is subject to major failures during service. Dispatchers may have limited contextual information when responding to an emerging delay, and often rely on their own experience to manage an...
Article
Full-text available
While premium transit modes such as commuter rail can improve access to opportunities, the higher fares that accompany these services create barriers to their use. Fare-sensitive access measures require accurate estimation of fare costs between origins and destinations. They are not often included in public transit access analyses because of data l...
Article
Full-text available
This agent-based simulation study investigates pedestrian dynamics with a focus on the impacts of behaviour idling on pedestrian flows. It also examines the influence of psychological, social, and environmental factors on pedestrian flows. Our research categorises pedestrian behaviour into three types: time-sensitive (Type A), mobility-constrained...
Article
On-demand transit (ODT) has been widely piloted in recent years by many transit agencies in response to changing travel behaviour and preferences among people. Some agencies have adopted ODT to replace underperforming bus routes, as part of a continuous service planning process while others incorporated it within network re-design. All these trends...
Article
Full-text available
Typical performance measurements of public transit operations make use of vehicle-based data such as automated vehicle location data or passenger-based data at specific fare collection points. Ideally, the performance of a transit system from a reliability perspective and according to passenger experience should be measured through individual passe...
Article
Measuring public opinion about the quality of transit services is a key factor in understanding and addressing customer dissatisfaction and increasing customer loyalty and ridership. Sentiment analysis using social media—in particular Twitter—is a relatively cheap and potentially powerful complement to traditional survey methods, which are expensiv...
Article
Full-text available
The Covid-19 pandemic's impacts on public transit will be felt for years, if not longer. In a few short weeks in 2020, the nature of day-to-day travel shifted around the world. Many of those who were able to stay at home did so while a large majority of those who needed to continue traveling moved away from public transit if they had alternatives a...
Conference Paper
Typical performance measurements of public transit operations make use of vehicle-based data such as automated vehicle location data, or passenger-based data at specific fare collection points. Ideally, the performance of a transit system from a reliability and passenger experience should be measured through individual passenger journeys. The growi...
Preprint
Full-text available
Typical performance measurements of public transit operations make use of vehicle-based data such as automated vehicle location data, or passenger-based data at specific fare collection points. Ideally, the performance of a transit system from a reliability and passenger experience should be measured through individual passenger journeys. The growi...
Article
Full-text available
As the level of passenger demand in rail transit systems increases, major railway stations in urban centres face serious capacity issues. Both analytical and simulation methods have been used to analyse complex station areas; however, prior efforts have only focused on either train or pedestrian movements with over-simplified assumptions that do no...
Article
Full-text available
Information shared on social media by transit system customers is often candid, localized, and includes in the moment information about emerging events or issues. Twitter provides an unfiltered and timestamped feed of information that can be aggregated to generate valuable insights. Our research aims to identify passenger-related transit incidents...
Preprint
Full-text available
While premium transit modes such as commuter rail can improve access to opportunities, the higher fares that accompany these services create barriers to their use. Fare-sensitive access measures require accurate estimation of fare costs between origins and destinations. They are not often included in public transit access analyses because of data l...
Article
Full-text available
The TransitCenter Equity Dashboard tracks how well public transit systems in seven densely populated urban regions in the United States serve their riders and how changes to transit service affect riders over space, time, and cost constraints. The dashboard presents a series of charts and interactive maps that can be used to evaluate variations in...
Preprint
Full-text available
Representing the randomness that is inherent in transportation networks is of key importance for planners, schedulers, analysts, and users. While many detailed stochastic-sensitive simulation models of transportation networks exist, they are often costly, closed, and extremely data intensive, requiring significant investment from researchers and ag...
Preprint
Information shared on social media by transit system customers is often candid, localized, and includes in-the-moment information about emerging events or issues. Twitter provides an unfiltered and timestamped feed of information that can be aggregated to generate valuable insights. Our research aims to identify passenger-related transit incidents...
Preprint
Full-text available
As the level of passenger demand in rail transit systems increases, major railway stations in urban centres face serious capacity issues. Both analytical and simulation methods have been used to analyze complex station areas; however, prior efforts have only focused on either train or pedestrian movements with oversimplified assumptions that do not...
Article
Full-text available
A transit system's usefulness is governed by the freedom it provides to those who use it. This freedom, typically quantified as accessibility, is proportional to the amount and variety of destinations available to a potential transit user. Often, transit systems are designed with the commuter in mind; employment is a typical stand-in measure for al...
Conference Paper
Full-text available
Demand-responsive transit is a growing phenomenon in Canada, and is being increasingly considered as an alternative to fixed-route transit in lower density suburban and rural areas. This desire to provide coverage service at a lower cost is further driven by the introduction of application-based systems and cloud computing, which can provide more d...
Conference Paper
Full-text available
This paper investigates passenger rail reliability in Canada, where long-distance and intercity passenger rail service operated by VIA Rail Canada runs almost exclusively on track that they do not own. As pressure for greener long-distance travel options mount, VIA is facing reliability challenges attributed primarily to the Canadian operating mode...
Technical Report
Full-text available
This report summarizes and synthesizes the current state of practice of demand-responsive transit in Canada. The report describes a series of interviews conducted with transit agencies, vendors, and regional planning agencies on demand-responsive transit and outlines some key planning and operational considerations for those looking to implement de...
Article
Full-text available
Drawing on the strong connection between traffic modelling and physics we apply the principle of least action to traffic flow in an urban setting.
Thesis
Full-text available
Transit agencies struggle daily with the randomness experienced by vehicles as they traverse their routes. Since reliability is one of the most important factors in determining the quality of a transit system, it is important that agencies use effective and data-informed strategies to combat this randomness as much as possible. One commonly used st...
Article
Full-text available
With light rail transit (LRT) and other similar rail-based commuter transit systems, train and associated station platform length provides an added dimension of flexibility not available to buses. Train and platform lengths are important factors in the planning and expansion phases of a network. Existing cost models that determine optimal headway b...
Conference Paper
Full-text available
Departure lounges are one of the few customizable areas in an airport that do not directly generate revenue. With high terminal construction costs, flexibility in lounge configuration means finding an appropriate seat configuration is in the interest of airport designers. There is also potential for shared used of lounges among gates. Lounge config...
Conference Paper
Full-text available
There are a number of strategies that transit operators may use to mitigate the randomness inherent in a bus’ movement along a route. Many of these strategies have evolved to include real-time information in order to make dynamically informed decisions. One such strategy is the holding control strategy, where certain stops are selected as time poin...

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