Dynamic Management of Real-Time Location Data on GPS-Enabled Mobile Phones

Barbeau, Sean J; Labrador, Miguel A.; Pérez, Alfredo; Winters, Philip L; Georggi, Nevine Labib; Aguilar, David P; Pérez, Rafael

doi:10.1109/ubicomm.2008.83

Cited by 31 publications

(17 citation statements)

References 11 publications

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“…Furthermore, smartphones have become capable enough to transfer the GPS collected data to a database server [14]. In order to utilized the same feature in research work: real time data connectivity provides new services to travelers like traffic alerts based on user"s instantaneous location.…”

Section: Gps Pointsmentioning

confidence: 99%

An Early Alert System for Traffic Congestion based on Social Messages on Smartphones

Abdullah¹,

Ali²,

Hassan³

2016

IJCA

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Road traffic congestion is a global problem and large amount of money is being invested to cope with traffic congestion problems. These interventions focus on reducing traveler time on roads and highways in particular. Various approaches such as loop detection and automatic vehicle detection have been utilized for this purpose but all these happen to be very costly. The main purpose of this study is to propose a smartphone application through which users can share congestion information through social messages. This application is based on client-server architecture. On the client side, it gives traffic congestion information to the server; while on the reverse side, it takes information from the server and disseminates it to relevant users. A user searches for congestion information shared through social messages on a planned route in order to check if his path is clear or congested. In this way, the user can get timely be informed and thus be able to avoid that congested path and look for alternative routes.

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Section: Gps Pointsmentioning

confidence: 99%

An Early Alert System for Traffic Congestion based on Social Messages on Smartphones

Abdullah¹,

Ali²,

Hassan³

2016

IJCA

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“…[R-5] 안드로이드 GoogleMap API를 활용하여 보행 자의 현재 위치와 CPIS 영역, 보행자의 이동경 로를 표시할 수 있어야 한다 [16] . [14,15] . [16] .…”

Section: ⅰ 서 론 세계보건기구 보고서에 따르면 매년 세계 교통사고unclassified

Connectivity Management of a Pedestrian Smartphone App in the Cyber-Physical Intersection Systems (CPIS)

Jeong

Suramardhana²,

Nguyen³

2014

The Journal of Korea Information and Communications Society

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In this paper, we introduce the concept of cyber-physical intersection systems (CPIS) which interconnects roadside units (RSU) located at the intersection, on-board units (OBU) of moving vehicles, and the smartphone apps, named the Smartphone Agent (SA). At the pedestrian mode of the SA, the connectivity management schemes, such as a location update and a handover control algorithm, are proposed to better support the CPIS services while minimizing the power consumption of the pedestrian's smartphone. We develop a real prototype of the CPIS, including RSU, OBU, and the SA. Based on the numerical results collected from a pedestrian moving around the Pusan National University campus, we validate that the proposed connectivity management schemes can improve not only the power efficiency of the pedestrian's smartphone, but also the quality of the CPIS services.

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“…Along these lines, in 2008 Barbeau et al addressed the consideration that with location-based GPS, several issues arise, including the tradeoff between data accuracy and battery life, data transmission costs and burden on the server. The researchers introduced two algorithms, a "Critical Point" algorithm and a "Location-Aware State Machine" algorithm, intended to ensure that the GPS devices did not waste battery power obtaining fixes when these would not enhance the quality of the position data.…”

Section: Smart Phone Applications In Transportationmentioning

confidence: 99%

The Application of Smart Phone, Weight-Mile Truck Data to Support Freight-Modeling, Performance Measures and Planning

Bell¹,

Figliozzi²

2013

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Oregon is one of the few states that currently charge a commercial truck weight-mile tax (WMT). The Oregon Department of Transportation (ODOT) has developed a data-collection system -Truck Road Use Electronics (TRUE) -to simplify WMT collection. The TRUE system includes a smart phone application that collects and records Global Positioning System (GPS) data. The TRUE data has enormous advantages over GPS data used in previous research due to its level of geographic detail and the potential to also integrate trip origin and destination, vehicle class, and commodity-type data. This research evaluates the accuracy of the TRUE data and demonstrates its use for significant ODOT ancillary applications. Specifically, ancillary applications that address ODOT freight modeling, performance measures, and planning needs are explored. The use of the data for highly accurate trip-generation rates and mobility performance measures is demonstrated. In addition, it is shown that the TRUE data has strong potential to be used for safety, accessibility and connectivity, system condition and environmental stewardship performance measures. The potential use of the TRUE data for emissions estimates that take into account truck-type details, truck weight and detailed speed profiles is considered. Results indicate that TRUE data, integrated with ODOT weigh-in-motion (WIM) data, will greatly improve the accuracy of emission estimates at the project and regional level. This research confirms the potential use of the TRUE data for significant ancillary applications and demonstrates the regional value of the TRUE data to enhance existing freight modeling, performance measures and planning.

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Dynamic Management of Real-Time Location Data on GPS-Enabled Mobile Phones

Cited by 31 publications

References 11 publications

An Early Alert System for Traffic Congestion based on Social Messages on Smartphones

An Early Alert System for Traffic Congestion based on Social Messages on Smartphones

Connectivity Management of a Pedestrian Smartphone App in the Cyber-Physical Intersection Systems (CPIS)

The Application of Smart Phone, Weight-Mile Truck Data to Support Freight-Modeling, Performance Measures and Planning

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