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A key challenge for railway transport is to guarantee an attractive overall offer that is flexible in adapting capacity to meet both short-term variations and long-term trends in travel demand. In the Netherlands and many other European countries, passenger trains operate a fixed line plan with a regular interval throughout the day for each day of the week. However, there is an increasing interest in more flexible timetables that are better aligned with distinctive passenger flow patterns over the day or between days. For instance, commuter and leisure travels differ often in destination like business districts versus city centres. The COVID-19 pandemic clearly demonstrates how passenger demand dynamically evolves depending on government restrictions. Among the long-term behavioural effects of this pandemic, it is expected that more people will continue working from home with a preference for certain days.
In this PhD research you will be developing mathematical models to compute railway timetables that are flexible to variations in travel demand patterns. You will analyse passenger travel data to derive structural variations in passenger routes and departure times over the week. For the long term, you will apply stated preference methods to predict structural variations in future passenger behaviour. From the identified distinctive demand patterns you will derive homogeneous timetable periods with train service variations that may vary from small variations of a basic hour pattern to large changes in the line plan in certain areas and periods. Ultimately, you will develop a flexible railway timetable optimization problem to compute conflict-free multi-periodic railway timetables with service variations over homogeneous periods. This optimization problem will integrate elements from line planning, railway timetabling and passenger routing. Finally, you will solve flexible timetable problems for real-world cases from Netherlands railways.
This PhD project is a collaboration between the Department of Transport & Planning (T&P) of Delft University of Technology, and the Department Performance management & Innovation (PI) of Netherlands Railways (NS). You will be part of both the Digital Rail Traffic Lab (DRTLab) and the Smart Public Transport Lab (SPTL) at T&P, and also work in the Department PI at NS for one day per week. T&P aims at top-level fundamental research that contributes to a more efficient and robust design and reliable operation of transport systems. T&P is composed of 11 research labs addressing various transport challenges. The DRTLab develops innovative models and methods for railway transport planning, railway traffic management and train control to improve overall railway transport system performance. The SPTL develops new solutions and methods for public transport planning, operations and management
You satisfy the following profile.
If your mother language is not English and you do not hold a degree from an institution in which English is the language of instruction, you must submit proof of English proficiency from either TOEFL (minimum total score of 100) or IELTS (minimum total score of 7.0). Proof of English language proficiency certificates older than two years are not accepted.
Fixed-term contract: 4 years.
TU Delft offers PhD-candidates a 4-year contract, with an official go/no go progress assessment after one year. Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities, increasing from € 2395 per month in the first year to € 3061 in the fourth year. As a PhD candidate you will be enrolled in the TU Delft Graduate School. The TU Delft Graduate School provides an inspiring research environment with an excellent team of supervisors, academic staff and a mentor. The Doctoral Education Programme is aimed at developing your transferable, discipline-related and research skills.
The TU Delft offers a customisable compensation package, discounts on health insurance and sport memberships, and a monthly work costs contribution. Flexible work schedules can be arranged. For international applicants we offer the Coming to Delft Service and Partner Career Advice to assist you with your relocation.
Delft University of Technology is built on strong foundations. As creators of the world-famous Dutch waterworks and pioneers in biotech, TU Delft is a top international university combining science, engineering and design. It delivers world class results in education, research and innovation to address challenges in the areas of energy, climate, mobility, health and digital society. For generations, our engineers have proven to be entrepreneurial problem-solvers, both in business and in a social context. At TU Delft we embrace diversity and aim to be as inclusive as possible (see our Code of Conduct). Together, we imagine, invent and create solutions using technology to have a positive impact on a global scale.
Challenge. Change. Impact!
The Faculty of Civil Engineering & Geosciences (CEG) is committed to outstanding international research and education in the field of civil engineering, applied earth sciences, traffic and transport, water technology, and delta technology. Our research feeds into our educational programmes and covers societal challenges such as climate change, energy transition, resource depletion, urbanisation and the availability of clean water, conducted in close cooperation with a wide range of research institutions. CEG is convinced that Open Science helps to achieve our goals and supports its scientists in integrating Open Science in their research practice. The Faculty of CEG comprises 28 research groups in the following seven departments: Materials Mechanics Management & Design, Engineering Structures, Geoscience and Engineering, Geoscience and Remote Sensing, Transport & Planning, Hydraulic Engineering and Water Management.
Click here to go to the website of the Faculty of Civil Engineering & Geosciences.
Delft University of Technology (TU Delft)
Mekelweg 2, 2628 CD, Delft
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