news
News and updates
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🎉LajkBus is getting more and more popular!
A shared taxi 🚕 for the price of a bus 🚌 - that’s the simplest definition of LajkBus. On February 10th as part of the SUM Project, we launched a pilot service offering convenient on-demand transport. Thanks to it, almost all residents of Skotniki have a virtual public transport stop within a walking distance of 300 meters. It started with 15 and now our 2 vans transport about 2️00 passengers every day! Great cooperation of various parties that made it happen! 🔵 Supported with SUM Project. 🔵 Initiated and put to life by Łukasz Gryga and his team in ZTP Krakow. 🔵 Orchestrated by SCALAR ZF Group. 🔵 Analysed, simulated with our team at Uniwersytet Jagielloński w Krakowie: Olha Shulika, Michał Bujak, Farnoud Ghasemi, Hanna Vasiutina - with our 𝐄𝐱𝐌𝐀𝐒 ride-pooling algorithm (with methodology similar to the one used here)
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📣Kyoto is ready for our studies
During the 16th International Conference on Advanced Systems in Public Transport CASPT2025 in Kyoto (Japan) 🎤Rafal will present our studies on Methodology for Idenfying the Most Suitable Urban Area for Implementing On-Demand Feeder Bus Services. This information is a great reward for the whole SUM team for their multi-month research efforts. Be ready for the report from 🇯🇵
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💣 Our results published in Sci. Rep.
Suppose in a stable urban traffic system populated only by human driven vehicles (HDVs), a given proportion (e.g.10 %) is replaced by a fleet of Connected and Autonomous Vehicles (CAVs), which share information and pursue a collective goal. Suppose these vehicles are centrally coordinated and differ from HDVs only by their collective capacities allowing them to make more efficient routing decisions before the travel on a given day begins. Suppose there is a choice between two routes and every day each driver makes a decision which route to take. Human drivers maximize their utility. CAVs might optimize different goals, such as the total travel time of the fleet. We show that in this plausible futuristic setting, the strategy CAVs are allowed to adopt may result in human drivers either benefitting or being systematically disadvantaged and urban networks becoming more or less optimal. Consequently, some regulatory measures might become indispensable. Ready for more? See our latest article in Scientific Reports 📖
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Impressive submission pace
COeXISTENCE and SUM team members had a busy time but effects are visible to the naked eye. In the first month of the year we submitted 4 papers for hEART conference, 1 for EWGT conference, 1 for CASPT conference and 1 for ICML conference. Big applause for dedication and work👏 Fingers crossed for positive news!
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Soon in Brussels
📣IGLO Open on the Polish Presidency: Programme and R&I Priorities is only one week away! Don’t wait and register via this LINK. This event will serve as a platform to present and discuss Poland’s strategic vision and priorities in Research and Innovation during its presidency. Among many great scientists there will be also Rafal. He will take part in panel discussion with ERC laureates moderated by Prof. Leszek Kaczmarek, ERC Scientific Council Member. Add to your calendar: Wednesday, January 22, 2025 10:00-13:00 CET
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MoMaS is the answer! 💡
Have you ever wondered how do two-sided platforms like Uber grow? Purely microscopic phenomena lead to complex patterns of market share evolution. Now, with our MoMaS you can simulate and understand why Uber prevailed, and its competitors (Bolt) enter the market with easy. 👏 Congratulations to Farnoud and Rafal on their outstanding results published in Transportation Research Part C: Emerging Technologies! Read the open-access full paper here
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When science meets social needs 🤝
With the local authorities and recognised researchers during the conference Czuję pociąg do Myślenic in Myślenice Rafal discussed about the planned railway line from Myślenice to Kraków and its impact on the local society and its potential to be a corridor for the sustainable development of housing estates.
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COeXISTENCE team hit the ground running by participating in TRB2025
📢 It is becoming our tradition to begin the New Year at TRB Annual Meeting. On 6th of January in Washington Zoltán and Grzegorz presented our poster titled Framework to Measure Properties of Microscopic Traffic Equilibria It shows what we called Routing ZOO (a sumo-based framework) thanks to which we want to check what Microscopic Traffic Assignment really is: what are its properties, stability, is it equilibrium etc. Draft repo, that soon we will use for bigger experiments, is here.
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The New Year has brought some good news
💣We started 2025 with good news - our open access publication with the TU Delft friends is already available in the Transportation Research Part A: Policy and Practice. In this paper using agent-based simulation modelling on the realistic case study of the city of Amsterdam, the Netherlands, we study the impacts of drivers’ ride acceptance behaviour, estimated from unique empirical data, on the ride-sourcing system where the platform applies regular and surge pricing strategies, and riders may revoke their requests and reject the received offers. Furthermore, we delve into the implications of various supply–demand intensities, a centralised fleet (i.e., mandatory acceptance on each ride request) versus a decentralised fleet (i.e., ride acceptance decision by each driver), ride acceptance rates, and surge pricing settings. An agent-based simulation, MaSSim is public and you can get it from this repo for more research like this.
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10 years of Fast Commuter Rail 🚆
10 years after first train had become the distance between Krakow and Wieliczka Rafal had an honour to participate in the conference devoted to Fast Commuter Rail (Szybka Kolej Aglomeracyjna, SKA) and in debate not only about achievements over the years, but also about challenges, future plans, so as to make public transport more and more open and competitive.
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8th Silesian Science Festival KATOWICE is coming 🚀
At first view, the city’s transport system is a complex technical structure filled with machines 🚙 (vehicles) and engineering 🛣 (roads, tracks, bridges, etc.) - managed by engineers and algorithms. Nothing could be more wrong! Engineering only sets the boundary conditions here, but the main actors are us, people. Our decisions (what, when, which way and where I will go) determine the shape of this complex system. During 8th Silesian Science Festival KATOWICE Rafal will show it on a few examples, discuss two Nobel Prizes, including one in game theory, which we are currently playing among ourselves, but … soon will start playing with artificial intelligence 🤹♂️ Join us this Saturday, 7th December. Starting at 1:10 PM. Click here for more info about 8th Silesian Science Festival KATOWICE. Presentation
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Our latest paper published in Travel Behaviour and Society💣
The latest publication with Arkadiusz Drabicki in collaboration with Oded Cats Has the COVID-19 pandemic affected travellers’ willingness to wait with real-time crowding information? is now available! 🚍 This study investigates the willingness to wait (WTW) to reduce (or avoid) overcrowding with real-time crowding information in urban public transport (bus and tram) journeys, analysing pre- vs. post-COVID travel behaviour attitudes. Access the paper here ⬅️