Arkadiusz Drabicki

• Post-doctoral researcher at Technical University of Munich

This study examines the environmental impacts of urban growth in Warsaw since 2006 and models the implications of future urban development for traffic pollutant emissions and pollution levels. Our findings demonstrate that, over the past two decades, urban sprawl has resulted in decreases in accessibility to public transport, social services, and n...

The present study describes the data sets produced in Warsaw, Poland with the aim of developing tools and methods for the implementation of human-centred and data-driven solutions to the enhancement of sustainable mobility transition. This study focuses on school commutes and alternatives to private cars for children drop off and pick up from prima...

Overcrowding is a major phenomenon affecting travel experience in urban public transport, whose negative impacts can be potentially mitigated with real-time crowding information (RTCI) on public transport vehicle departures. In this study, we investigate the willingness to wait (WTW) with instantaneous RTCI to avoid the in-vehicle (over)crowding th...

A common problem in public transport systems is bus bunching, characterized by a negative feedback loop between service headways, number of boarding passengers and dwell times. In this study, we examine whether providing real-time crowding information (RTCI) at the stop regarding the two next vehicle departures can stimulate passengers to wait for...

Public transport (PT) service disruptions are common and unexpected events which often result in major impediment to passengers’ typical travel routines. However, attitudes and behavioural responses to unexpected PT disruptions are still not fully understood in state-of-the-art research. The objective of this study is to examine how PT users adapt...

Public transport (PT) overcrowding is a notorious problem in urban transport networks. Its negative effects upon travel experience can be potentially addressed by disseminating real-time crowding information (RTCI) to passengers. However, impacts of RTCI provision in urban PT networks remain largely unknown. This study aims to contribute by develop...

We propose a new method to estimate benefits of road network improvements, which allows to include the induced demand without arbitrary assumptions. Instead of estimating induced demand (which is nontrivial and hardly possible in practice), we search for demand induction where initial benefits are mitigated to zero. Such approach allows to formulat...

Research on connected and automated vehicles (CAVs) has been gaining substantial momentum in recent years. However, the vast amount of literature sources results in a wide range of applied tools and datasets, assumed methodology to investigate the potential impacts of future CAVs traffic, and, consequently, differences in the obtained findings. Thi...

This paper presents results from simulation analysis of road network development scenarios in the city of Krakow (Poland), accounting for potential impact of traffic demand elasticity. These envisage a completion of a suburban ring road, which would improve network travel conditions and could therefore induce additional traffic volumes (and eventua...

The objective of this paper is to propose a method to analyse and describe cyclists’ behaviour at signalized intersections with specific focus on the multichannel (multi-lane) queue phenomenon. As we observed, cyclists form queues without a fixed-lane and FIFO discipline, for which the classical, car-oriented analytical approach becomes insufficien...

In this paper we propose a new approach to model regional travel demand with a four-step model. Based on a comprehensive travel survey results for the Małopolska region in Poland (over 3mln inhabitants) we analysed the demand model with specific focus on regional trips. As a result, we introduce a modified model structure where long-distance trips...

The paper is devoted to simulation analysis of the phenomenon often observed in contemporary urban areas, i.e. the so-called induced traffic resulting from the improvement of travel conditions in the road network. On the basis of analyzes carried out in the simulation model of Krakow, it was shown, as exemplified by the postulated changes in the ur...

The paper presents results from simulation analysis of the western 3rd ring road project in the city of Krakow (i.e. Trasa Lagiewnicka, Trasa Pychowicka and Trasa Zwierzyniecka), performed in the macroscopic model of transport system in the Krakow metropolitan area. Simulation works reveal shifts in traffic flows and changes in urban transport netw...

The objective of this paper is to discuss the replication of passenger congestion (overcrowding) effects on output path choices in public transport assignment models. Based on a comprehensive literature review, the impact of passenger overcrowding effects was summarised in 3 main categories: the inclusion of physical capacity constraints (limits);...

This paper proposes a new method to estimate the macroscopic volume delay function (VDF) from the point speed-flow measures. Contrary to typical VDF estimation methods it allows estimating speeds also for hypercritical traffic conditions, when both speeds and flow drop due to congestion (high density of traffic flow). We employ the well-known hydro...

Ograniczenia przepustowo'sci sieci transportu zbiorowego sca przedmiotem wielu prac badawczych z zakresu modelowania podró.zy, a jednocze'snie byly dotcad w niewielkim stopniu wdro.zone w modelach symulacyjnych – przykladowo, funkcjonalno's'c ta zostala zastosowana dopiero w najnowszych wersjach programu PTV VISUM (z ang. public transport capacity...

The paper proposes a new dynamic transit assignment model, which aims to reproduce the passengers' travelling strategies in presence of real-time information (RTI) not only on arrival times, but also on crowding levels in transit vehicles. Recent research developments in fields of transit assignment focused on the inclusion of two aspects relevant...

Artyku{l} prezentuje metod{ce} obliczania oporu relacji skr{ce}tnych na skrzy{.z}owaniach dla makroskopowych miejskich modeli ruchu. Pokazano, jak na podstawie dost{ce}pnej bazy danych o warszawskiej sieci drogowej mo{.z}na zbudowa{'c} model sieciowy wraz z okre{'s}leniem przepustowo{'s}ci i czas{ó}w traconych na relacjach skr{ce}tnych. Wykorzystan...

W niniejszej pracy opisano modele wyboru trasy przez pasażera, powszechnie używane w modelowaniu podróży w transporcie publicznym, zwłaszcza w kontek'scie współczesnych badań naukowych. W poszczególnych rozdziałach zaprezentowano algorytmy wyboru trasy zastosowane w rozkładzie ruchu na przykładzie programów PTV VISUM i BusMezzo, porównując rezultat...