DROPS

Document

DOI: 10.4230/OASIcs.ATMOS.2026.12

A Multimodal Framework for Transport Planning

Authors: Lena Dittrich, Michael Rihlmann, Philine Schiewe, and Anita Schöbel

Published in: OASIcs, Volume 147, 26th Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2026)

Abstract

Planning high-quality public transport systems requires taking multiple modalities of transportation into account simultaneously. This includes public transport such as trains or buses, but also ridepooling, walking or biking. While planning of public transport lines and timetables has been studied extensively for unimodal systems, research on settings which include more than one modality is just at its beginning. In this paper, we categorize the modalities as line-based, ridepooling, and nonscheduled for which we develop a framework for multimodal planning. This can be applied for different line-based modalities, e.g., for planning bus and tram lines simultaneously, but also for modalities from different categories, e.g., for planning ridepooling together with bus lines while taking footpaths into account. Technically, we extend classic graph structures from unimodal public transport optimization to the multimodal case and show how established solution methods for the unimodal case carry over to the multimodal setting. In particular, we formulate multimodal line planning and periodic timetabling problems. We demonstrate the practical applicability of the framework through a case study on real-world data from Helsinki, Finland, considering five line-based modalities and walking. Our experiments show that incorporating multimodal aspects into the planning process consistently reduces average passenger travel time.

Cite as

Lena Dittrich, Michael Rihlmann, Philine Schiewe, and Anita Schöbel. A Multimodal Framework for Transport Planning. In 26th Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2026). Open Access Series in Informatics (OASIcs), Volume 147, pp. 12:1-12:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026)

Copy BibTex To Clipboard

@InProceedings{dittrich_et_al:OASIcs.ATMOS.2026.12,
  author =	{Dittrich, Lena and Rihlmann, Michael and Schiewe, Philine and Sch\"{o}bel, Anita},
  title =	{{A Multimodal Framework for Transport Planning}},
  booktitle =	{26th Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2026)},
  pages =	{12:1--12:20},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-453-6},
  ISSN =	{2190-6807},
  year =	{2026},
  volume =	{147},
  editor =	{Cacchiani, Valentina and Funke, Stefan},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ATMOS.2026.12},
  URN =		{urn:nbn:de:0030-drops-278084},
  doi =		{10.4230/OASIcs.ATMOS.2026.12},
  annote =	{Keywords: multimodal planning, line planning, timetabling}
}

Document

DOI: 10.4230/OASIcs.ATMOS.2025.16

A Model for Strategic Ridepooling and Its Integration with Line Planning

Authors: Lena Dittrich, Michael Rihlmann, Sarah Roth, and Anita Schöbel

Published in: OASIcs, Volume 137, 25th Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2025)

Abstract

Ridepooling becomes more and more popular and providing comfortable and easy-to-use transportation (nearly as taxi rides) is known to motivate passengers to use public transport. In this paper we develop a model for strategic planning of ridepooling. Here we decide in which regions ridepooling should be offered and what capacities are needed, neglecting the operational details of dial-a-ride planning. We use this model for integrating ridepooling and line planning, and analyze the integrated model theoretically and numerically. Our experiments show the potential of the approach.

Cite as

Lena Dittrich, Michael Rihlmann, Sarah Roth, and Anita Schöbel. A Model for Strategic Ridepooling and Its Integration with Line Planning. In 25th Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2025). Open Access Series in Informatics (OASIcs), Volume 137, pp. 16:1-16:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

Copy BibTex To Clipboard

@InProceedings{dittrich_et_al:OASIcs.ATMOS.2025.16,
  author =	{Dittrich, Lena and Rihlmann, Michael and Roth, Sarah and Sch\"{o}bel, Anita},
  title =	{{A Model for Strategic Ridepooling and Its Integration with Line Planning}},
  booktitle =	{25th Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2025)},
  pages =	{16:1--16:20},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-404-8},
  ISSN =	{2190-6807},
  year =	{2025},
  volume =	{137},
  editor =	{Sauer, Jonas and Schmidt, Marie},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ATMOS.2025.16},
  URN =		{urn:nbn:de:0030-drops-247720},
  doi =		{10.4230/OASIcs.ATMOS.2025.16},
  annote =	{Keywords: Multi-modal planning, Line plan, Ridepooling, Integrated models}
}

Search Results

Documents authored by Rihlmann, Michael

A Multimodal Framework for Transport Planning

Abstract

Cite as

A Model for Strategic Ridepooling and Its Integration with Line Planning

Abstract

Cite as

Thanks for your feedback!

Could not send message