Recognizing the levy-walk nature of vehicle mobility

Cao, Yuan; Li, Yong; Zhou, Jingyi; Jin, Depeng; Su, Li; Zeng, Lieguang

doi:10.1109/iwcmc.2011.5982710

Cited by 5 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These contexts are often determined by the travel purpose (such as travel to shop, work, school or leisure), travel mode, and spatial scale (I. Rhee, M. Shin, S. Hong, K. Lee, S.J. Kim and S. Chong, 2011; Rhee et al, 2008;Brockmann et al, 2006;Cao et al, 2011;Scafetta, 2011). In all these contexts, evidence of Lévy walks has been found.…”

Section: Lévy Walk Behavior In Animal and Human Movementsmentioning

confidence: 99%

“…For example, GPS traces from five different outdoor sites (I. Rhee, M. Shin, S. Hong, K. Lee, S.J. Kim and S. Chong, 2011), circulation of bank notes (Brockmann et al, 2006), city cabs in Beijing (Cao et al, 2011) and long-range human displacements (from 1 to 1000 km) (Scafetta, 2011) exhibited Lévy walks.…”

Section: Lévy Walk Behavior In Animal and Human Movementsmentioning

confidence: 99%

See 1 more Smart Citation

Characterizing the movement patterns of minibus taxis in Kampala's paratransit system

Ndibatya

Booysen

2021

Journal of Transport Geography

View full text Add to dashboard Cite

Urban travelers in Africa depend on minibus taxis for their daily social and business commuting. This paratransit system is loosely regulated, self-organizing, and evolves organically in response to demand. Our study used floating car data to analyze and describe the movement characteristics of the minibus taxis in Kampala, Uganda. We made three intriguing findings. Firstly, in searching for, picking up and transporting passengers, minibus taxi trajectories followed a heavy-tailed power-law distribution similar to a "Lévy walk". Secondly, their routes gradually evolved. Thirdly, the extraordinary winding (expressed in terms of tortuosity) of the paths suggested the extreme determination of the drivers' search for passengers. Overall, we found that the passenger search strategies used by the taxis were significantly inefficient. Our findings could help city planners to build on the self-organizing characteristics of the minibus taxi system, and improve the mobility of travelers, by optimizing routes and the distribution of public amenities.

show abstract

Section: Lévy Walk Behavior In Animal and Human Movementsmentioning

confidence: 99%

Section: Lévy Walk Behavior In Animal and Human Movementsmentioning

confidence: 99%

Characterizing the movement patterns of minibus taxis in Kampala's paratransit system

Ndibatya

Booysen

2021

Journal of Transport Geography

View full text Add to dashboard Cite

show abstract

“…These contexts are often determined by the travel purpose (such as travel to shop, work, school or leisure), travel mode, and spatial scale (I. Rhee, M. Shin, S. Hong, K. Lee, S.J. Kim and S. Chong, 2011;Rhee et al, 2008;Brockmann et al, 2006;Cao et al, 2011;Scafetta, 2011). In all these contexts, evidence of Lévy walks has been found.…”

Section: Lévy Walk Behavior In Animal and Human Movementsmentioning

confidence: 99%

Characterizing the movement patterns of minibus taxis in Kampala's paratransit system

Ndibatya¹,

Booysen²

2020

Preprint

View full text Add to dashboard Cite

Urban travelers in Africa depend on minibus taxis for their daily social and business commuting. This paratransit system is loosely regulated, self-organizing, and evolves organically in response to demand. Our study used floating car data to analyze and describe the movement characteristics of the minibus taxis in Kampala, Uganda. We made three intriguing ?findings. Firstly, in searching for, picking up and transporting passengers, minibus taxi trajectories followed a heavy-tailed power-law distribution similar to a Levy walk. Secondly, their routes gradually evolved. Thirdly, the extraordinary winding (expressed in terms of tortuosity) of the paths suggested the extreme determination of the drivers' search for passengers. Overall, we found that the passenger search strategies used by the taxis were signi?ficantly inefficient. Our fi?ndings could help city planners to build on the self-organizing characteristics of the minibus taxi system, and improve the mobility of travelers, by optimizing routes and the distribution of public amenities.

show abstract

“…This trace contains the mobility track logs obtained from 27000 participating taxis carrying GPS receivers during the whole May month in 2010 [12]. To obtain this trace, we utilized the GPS devices to collect the taxi locations and timestamps and GPRS modules to report the records every one minute for moving taxis.…”

Section: A Vehicular Mobilitymentioning

confidence: 99%

“…To obtain this trace, we utilized the GPS devices to collect the taxi locations and timestamps and GPRS modules to report the records every one minute for moving taxis. Based on the Beijing trace, we utilize the angular model of [11] to extract the data of flight length and pause time, and subsequently to study the distributions of flight length and pause time, preliminary results of which are reported in our previous work [12]. Fig.…”

Section: A Vehicular Mobilitymentioning

confidence: 99%

Collaborative Vehicular Content Dissemination with Directional Antennas

Hanzo

Jin

et al. 2012

IEEE Trans. Wireless Commun.

Self Cite

View full text Add to dashboard Cite

Abstract-We study the performance of collaborative vehicular content dissemination, where the content is distributed within the network by vehicle-to-vehicle opportunistic communications and the vehicle nodes are equipped with directional antennas. Through analysing a large real-world vehicle trace, we adopt an accurate mobility model of Lévy-walk to set up the realistic vehicular network simulation environment. Using a fluid approximation, we derive a theoretical model to depict the system performance of content dissemination time. The accuracy of the proposed analysis is confirmed by simulation results, which also show that the directional antenna performs better than the omnidirectional antenna in our considered scenario, especially when the antenna beam is well scheduled with small beamwidth and high beam steering rate.

show abstract

Recognizing the levy-walk nature of vehicle mobility

Cited by 5 publications

References 15 publications

Characterizing the movement patterns of minibus taxis in Kampala's paratransit system

Characterizing the movement patterns of minibus taxis in Kampala's paratransit system

Characterizing the movement patterns of minibus taxis in Kampala's paratransit system

Collaborative Vehicular Content Dissemination with Directional Antennas

Contact Info

Product

Resources

About