TY - JOUR AU - Siqueira Silva, Dahlen AU - Földes, Dávid AU - Csiszár, Csaba TI - Business Model for Shared Autonomous Vehicles Mobility Services JF - TEHNICKI VJESNIK-TECHNICAL GAZETTE J2 - TEH VJESN VL - 31 PY - 2024 IS - 2 SP - 647 EP - 656 PG - 10 SN - 1330-3651 DO - 10.17559/TV-20230502000597 UR - https://m2.mtmt.hu/api/publication/34733470 ID - 34733470 N1 - Export Date: 18 March 2024 Correspondence Address: Silva, D.; Budapest University of Technology and Economics, Műegyetem rkp. 3, Hungary; email: dahlen.silva@edu.bme.hu AB - We propose a business model (BM) for mobility services based on shared autonomous vehicles (SAVs) anticipating the changes and opportunities for the current shared mobility service companies in updating their BMs to consider the AV technology. We have analysed the service characteristics of the current shared mobility services-taxi, ride-sourcing, ride-sharing, car rental, peer-to-peer car-sharing, and business-to-consumers car-sharing–and accordingly we determined how they would change when AVs are implemented into these services. The Lean Canvas is used to prepare the new BM, assuming the convergence of the current shared mobility services' BMs. We found that a customized travel fee and involvement of private AV owners in the service will alter revenue streams and customer segments, but modifications of key metrics and channels are not needed. According to the elaborated results, shared mobility companies can determine alterations in their BMs, strategy, and targets. LA - English DB - MTMT ER - TY - JOUR AU - Szilassy, Péter Ákos AU - Földes, Dávid TI - Impact of Ambient Temperature, Passenger Load, and Delay on the Consumption of Battery Electric Buses JF - PERIODICA POLYTECHNICA TRANSPORTATION ENGINEERING J2 - PERIOD POLYTECH TRANSP ENG VL - 52 PY - 2024 IS - 2 SP - 113 EP - 119 PG - 7 SN - 0303-7800 DO - 10.3311/PPtr.23478 UR - https://m2.mtmt.hu/api/publication/34565469 ID - 34565469 N1 - Export Date: 2 April 2024 CODEN: PPTED Correspondence Address: Szilassy, P.Á.; Department of Transport Technology and Economics, Műegyetem rkp. 3, Hungary; email: szilassy.peter.akos@kjk.bme.hu AB - The operation of state-of-the-art battery electric buses (BEBs) has started recently, and their consumption model is unknown. Therefore, the service providers are lenient regarding the energy used. Our aim was to reveal the effects of ambient temperature and bus service characteristics, such as passenger load and delay, on the energy consumption. Real-time consumption data of BEBs were analyzed in Nyíregyháza, Hungary, and the functional relationships among the aforementioned variables were revealed. We found that while ambient temperature is negatively correlated with consumption in the cold winter periods, the consumption surplus is positively correlated with passenger load and generally positively correlated with the delay on the trip because of road traffic. In the case of delay, the consumption increase is caused by more frequent acceleration and the greater consumption of auxiliary systems due to longer running times. Accordingly, the energy consumption can be estimated if the characteristics data are available. The results can be used by bus service operators to plan the daily schedule and predict the energy consumption of a BEB. LA - English DB - MTMT ER - TY - JOUR AU - Szilassy, Péter Ákos AU - Földes, Dávid AU - Csonka, Bálint TI - Városi autóbusz-hálózat elektrifikációja JF - KÖZLEKEDÉS ÉS MOBILITÁS J2 - KÖZL MOBIL VL - 2 PY - 2023 IS - 2 SP - 32 EP - 50 PG - 19 SN - 2939-7057 DO - 10.55348/KM.29 UR - https://m2.mtmt.hu/api/publication/34528050 ID - 34528050 AB - Számos városban cél az elektromos autóbuszok részarányának növelése. Jelenleg azonban ezen autóbuszok drágábbak, mint a dízelüzemű járművek, valamint használatuk újszerű tervezési és üzemeltetési eljárások használatát követeli meg (pl. töltésütemezés, önjáró kapacitás). Ezek ellenére az elektrifikációt nem előzi meg hálózat-szintű tervezés. Kutatásunk célja a töltési infrastruktúra tervezésére, az elektromos autóbusz-típus kiválasztására és az elektrifikáció költségbecslésre vonatkozó módszertan kidolgozása volt. A kidolgozott módszer újszerűsége a töltési infrastruktúra viszonylatcsoport-szerinti optimalizálása a hálózat (viszonylatok, menetrend stb.), a jármű és a töltési infrastruktúra jellemzőinek figyelembevételével. A módszert Budapestre alkalmaztuk közös végállomással rendelkező vagy közös szakaszon közlekedő viszonylatok esetében statikus végállomási és dinamikus felsővezetékes töltést figyelembe véve. A jelentős közös szakasszal rendelkező viszonylatcsoportok esetében a fonódó szakaszon felsővezeték telepítése a kedvezőbb költségű szemben a végállomási töltők alkalmazásával. A közös végállomással, de minimális fonódó szakasszal rendelkező 47 vizsgált viszonylat esetében a végállomási töltés miatti csúcsidei többletjárműigény csupán +4%. Az eredmények segíthetik a városi autóbusz-hálózat elektrifikációjának tervezését. LA - Hungarian DB - MTMT ER - TY - CHAP AU - Gyulyev, N. AU - Davidich, Y. AU - Voronko, V. AU - Davidich, N. AU - Földes, Dávid ED - Arsenyeva, O. ED - Sukhonos, M. ED - Biletskyi, I. ED - Tsegelnyk, Y. ED - Romanova, T. TI - Patterns of Change in the Probability of a Road Traffic Accident by Drivers of Different Temperaments T2 - Smart Technologies in Urban Engineering VL - 807 LNNS PB - Springer CY - Cham SN - 9783031468735 T3 - Lecture Notes in Networks and Systems, ISSN 2367-3370 ; 807 LNNS. PY - 2023 SP - 367 EP - 377 PG - 11 DO - 10.1007/978-3-031-46874-2_32 UR - https://m2.mtmt.hu/api/publication/34478667 ID - 34478667 N1 - O.M. Beketov National University of Urban Economy, 17 Marshala. Bazhanova, Kharkiv, 61002, Ukraine Műegyetem Rkp., Budapest University of Technology and Economics, Budapest, 1111, Hungary Conference code: 305429 Export Date: 5 January 2024 Correspondence Address: Davidich, Y.; O.M. Beketov National University of Urban Economy, 17 Marshala. Bazhanova, Ukraine; email: yuriy.davidich@kname.edu.ua AB - The presented paper establishes patterns of change in the probability of traffic accidents for twenty-year-old drivers taking into account traffic jams. It is noted that the duration of the traffic jam has a negative effect on the psychophysiological parameters of most drivers, which leads to an increase in psycho-emotional tension, the level of fatigue and, as a result, to an increase in the driver's reaction time. The probability of a traffic accident is one of the main properties of driver’s reliability, accounting for more than 70% of accidents. In order to assess the degree of impact of traffic jams on the probability of traffic accidents by young drivers, it is suggested to consider the ratio of these probabilities with and without traffic jams. It has been established that traffic jams affect drivers of different temperaments differently. The ratio of the probability of a traffic accident with and without a traffic jam for drivers of different temperaments was estimated using previously developed models of changes in the level of driver fatigue when leaving a traffic jam and changes in their reaction time. It was found that the duration of the traffic jam has the most negative effect on drivers of choleric and sanguine temperaments, increasing the probability of committing a traffic accident. Traffic jams have the least impact on a phlegmatic driver. The proposed scientific approach is based on a comprehensive study of the human factor, in particular the level of driver fatigue, which changes depending on driving conditions. The given patterns of change in the probability of road traffic accidents allow us to compare different solutions for improving road safety. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG. LA - English DB - MTMT ER - TY - JOUR AU - Siqueira Silva, Dahlen AU - Földes, Dávid AU - Csiszár, Csaba TI - Pick-up Points for Shared Autonomous Vehicle-based Mobility Services in Urban Areas: Demand Calculation and Locating Method JF - TRANSPORTATION RESEARCH PROCEDIA J2 - TRANSP RES PROCEDIA VL - 72 PY - 2023 SP - 2628 EP - 2635 PG - 8 SN - 2352-1465 DO - 10.1016/j.trpro.2023.11.801 UR - https://m2.mtmt.hu/api/publication/34436484 ID - 34436484 N1 - Export Date: 18 March 2024 Correspondence Address: Silva, D.; Budapest University of Technology and Economics, Muegyetem rkp. 3, Hungary; email: dahlen.silva@edu.bme.hu AB - The shared, on-demand and almost door-to-door use of the autonomous vehicles is expected in the future. Points to pick up travelers are required to promote safety, comfort, and higher service quality. We propose a method to calculate the demand based on current car use and locate different pick-up points for shared autonomous vehicle-based mobility services considering urban environment, available services, and users’ preferences. The method is applied as a study case providing the main findings: (i) types of pick-up points are identified based on the purposes of serving demand; (ii) as the walking radius increases, the number of pick-up points decreases; (iii) the number of pick-up points on on-street parking and sections of a street is limited by the unavailability of space and streets with low traffic. The results support future urban planning on optimization of urban space. LA - English DB - MTMT ER - TY - JOUR AU - Strommer, Tamás AU - Munkácsy, András AU - Földes, Dávid TI - How to define and measure modal share? JF - TRANSPORTATION RESEARCH PROCEDIA J2 - TRANSP RES PROCEDIA VL - 72 PY - 2023 SP - 2888 EP - 2895 PG - 8 SN - 2352-1465 DO - 10.1016/j.trpro.2023.11.834 UR - https://m2.mtmt.hu/api/publication/34436453 ID - 34436453 N1 - KTI Institute for Transport Sciences, 3-5 Than Károly Street, Budapest, H-1119, Hungary Department of Transport Technology and Economics, Faculty of Transportattion Engineering and Vehilce Engineering, Budapest University of Technology and Economics, 3 Muegyetem rakpart, Budapest, H-1111, Hungary Export Date: 18 March 2024 Correspondence Address: Strommer, T.; KTI Institute for Transport Sciences, 3-5 Than Károly Street, Hungary; email: strommer.tamas@kti.hu LA - English DB - MTMT ER - TY - JOUR AU - Szigeti, Szilárd AU - Földes, Dávid AU - Ye, Xin TI - Simulating the alteration in energy consumption at a zebra crossing considering different traffic rates of electric and rule-following autonomous vehicles JF - ACTA TECHNICA JAURINENSIS J2 - ACTA TECH JAURIN VL - 16 PY - 2023 IS - 4 SP - 174 EP - 182 PG - 9 SN - 1789-6932 DO - 10.14513/actatechjaur.00722 UR - https://m2.mtmt.hu/api/publication/34411504 ID - 34411504 AB - The progressive integration of autonomous vehicle (AV) technology holds the potential to reshape the prevailing traffic landscape. AVs have different driving characteristics than human-driven vehicles, which manifests itself in the strict adherence to speed limit, in giving priority to pedestrians, and in the pre-set headways they can keep. A traffic simulation environment was built around an unsignalized pedestrian crossing to measure the energy consumption of vehicles in the presence of AVs. The simulation environment was modified to adhere pedestrian-accepted gaps between vehicles in case of crossing. Considered vehicle types are yielding or not yielding human-driven, and AVs. Scenarios were built to model the AV traffic share, the different headways kept by AVs, and the various traffic volumes in each direction. The different driving behaviour and traffic share of AVs led to energy consumption changes, which were modelled through scenario analysis. The maximum energy consumption reduction of human-driven vehicles was 10.67% for yielding vehicles and 12.41% for non-yielding vehicles compared to the 0% AV traffic rate. Although, in case of AVs, the energy consumption increased in all scenarios compared to the basic version with only human-driven vehicles. In higher traffic scenarios, where only AVs were on the road, there was a substantial 35,92-96.55% increase in energy consumption, compared to the 0% AV ratio case. Thereby speed of vehicles, following distance and the number of stops affected the overall system efficiency. The results of this study can contribute to the understanding the impact of AVs which can support their introduction. LA - English DB - MTMT ER - TY - CHAP AU - Szigeti, Szilárd AU - Földes, Dávid ED - Horváth, Balázs ED - Henézi, Diána TI - Gyalogos csoportok átkelési döntéseinek vizsgálata jármű távolság alapján - budapesti esettanulmány T2 - I. Közlekedésbiztonsági konferencia -Transport safety conference PB - Magyar Közlekedéstudományi és Logisztikai Intézet CY - Győr SN - 9786156443205 PY - 2023 SP - 102 EP - 109 PG - 8 UR - https://m2.mtmt.hu/api/publication/34212492 ID - 34212492 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Maktabifard, Ali AU - Földes, Dávid AU - Bak, Bendegúz Dezső ED - Voß, Stefan ED - Shi, Xiaoning ED - Liedtke, Gernot ED - Daduna, Joachim R. TI - Constrained Multi-agent Path Planning Problem T2 - Computational Logistics PB - Springer Nature Switzerland AG CY - Cham SN - 9783031436123 T3 - Lecture Notes in Computer Science, ISSN 0302-9743 ; 14239. PY - 2023 SP - 450 EP - 466 PG - 17 DO - 10.1007/978-3-031-43612-3_28 UR - https://m2.mtmt.hu/api/publication/34134145 ID - 34134145 N1 - Faculty of Transportation Engineering and Vehicle Engineering, Department of Transport Technology and Economics, Budapest University of Technology and Economics, Budapest, Hungary Faculty of Mechanical Engineering, Department of Fluid Mechanics, Budapest University of Technology and Economics, Budapest, Hungary Export Date: 6 October 2023 Correspondence Address: Maktabifard, A.; Faculty of Transportation Engineering and Vehicle Engineering, Hungary; email: a.maktabifard@edu.bme.hu LA - English DB - MTMT ER - TY - CHAP AU - Földes, Dávid AU - Csonka, Bálint AU - Szilassy, Péter Ákos TI - Urban Bus Network Electrification T2 - Transportation Engineering - Annual Volume 2023 PB - IntechOpen CY - London SN - 9780850142921 PY - 2023 SP - 1 PG - 22 DO - 10.5772/intechopen.111940 UR - https://m2.mtmt.hu/api/publication/34033958 ID - 34033958 AB - Electric busses are spreading in cities in hope of mitigating local air pollution. Currently, battery electric busses are more expensive and require novel operational methods to optimize their use (e.g., applying daytime charging, and operating trolleybuses). Despite these, the electrification of urban busses is usually ad-hoc, preliminary planning is superficial, and does not consider the relationships among bus lines. This chapter introduces a method regarding charging infrastructure planning, electric bus type selection, and cost estimation. Based on the characteristics of the vehicle, charging infrastructure, bus service (lines, timetable, etc.), and energy consumption, a line-group optimization is introduced, which is the main novelty. The method was applied in a case study considering static terminal and dynamic catenary charging. The results help operators to boost the electrification of the urban bus network. LA - English DB - MTMT ER -