Utility of Global Positioning System to Measure Active Transport in Urban Areas

2007 ◽  
Vol 39 (10) ◽  
pp. 1851-1857 ◽  
Author(s):  
MITCH J. DUNCAN ◽  
W. KERRY MUMMERY ◽  
BEN J. DASCOMBE
Keyword(s):  
Active Transport ◽  
Global Positioning System ◽  
Urban Areas ◽  
Positioning System ◽  
Global Positioning

Urban Fleet Monitoring with GPS and GLONASS

1998 ◽  
Vol 51 (3) ◽  
pp. 382-393 ◽  
Author(s):  
M. Tsakiri ◽  
M. Stewart ◽  
T. Forward ◽  
D. Sandison ◽  
J. Walker
Keyword(s):  
Global Positioning System ◽  
Public Transport ◽  
Urban Areas ◽  
Dead Reckoning ◽  
Satellite System ◽  
Basic Function ◽  
Positioning System ◽  
Positioning Systems ◽  
Global Positioning ◽  
Global Navigation Satellite

The increasing volume of traffic in urban areas has resulted in steady growth of the mean driving time on fixed routes. Longer driving times lead to significantly higher transportation costs, particularly for vehicle fleets, where efficiency in the distribution of their transport tasks is important in staying competitive in the market. For bus fleets, the optimal control and command of the vehicles is, as well as the economic requirements, a basic function of their general mission. The Global Positioning System (GPS) allows reliable and accurate positioning of public transport vehicles except within the physical limitations imposed by built-up city ‘urban canyons’. With a view to the next generation of satellite positioning systems for public transport fleet management, this paper highlights the limitations imposed on current GPS systems operating in the urban canyon. The capabilities of a future positioning system operating in this type of environment are discussed. It is suggested that such a system could comprise receivers capable of integrating the Global Positioning System (GPS) and the Russian equivalent, the Global Navigation Satellite System (GLONASS), and relatively cheap dead-reckoning sensors.

scholarly journals ANALISIS TOPOLOGI DAN POPULASI PENDUDUK PEMUKIMAN MISKIN MENGGUNAKAN TEKNOLOGI REMOTE SENSING

2012 ◽  
Vol 6 (1) ◽  
pp. 20
Author(s):  
Aniati Murni Arymurthy ◽  
Edina Putri Purwandari
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
Global Positioning System ◽  
Urban Areas ◽  
Complex Problem ◽  
Positioning System ◽  
Use Of Technology ◽  
Global Positioning ◽  
Very High

Wilayah perkotaan di Indonesia memiliki karakteristik yang sama dengan wilayah perkotaan di negara-negara berkembang. Beberapa karakteristik tersebut seperti: (1) penurunan fungsi alam dengan berkurangnya ruang hijau atau vegetasi, (2) penumpukan bangunan beratap pada wilayah yang dekat dengan akses transportasi, industri dan pasar, (3) lokasi pemukiman pada zona yang berbahaya karena dekat dengan terminal, sepanjang aliran sungai, sepanjang jalur rel kereta api, dan tempat pembuangan sampah akhir. Keterkaitan antara nilai indeks kemiskinan dengan morfologi fisik dan vegetasi suatu wilayah dapat diketahui dengan pemanfaatan teknologi remote sensing (RS). Keakuratan analisis pemukiman miskin dengan teknologi RS bergantung pada kualitas citra satelit Very High Resolution (VHR) dan kelengkapan dataset Sistem Informasi Geografis (SIG). Teknologi Geospasial yang terintegrasi seperti RS, SIG, dan Global Positioning System (GPS) dapat berkontribusi secara interaktif dalam penilaian, pemahaman dan pemetaan untuk memecahkan masalah pemukiman penduduk yang kompleks di Indonesia. Urban areas in Indonesia have the same characteristics with urban areas in developing countries. Some characteristics such as: (1) decreased of the function of nature with the reduced the number of natural green space or vegetation, (2) accumulation of roofed buildings in the area close to transportation access, industry and market, (3) the location of housing in the dangerous zone as close to the terminal, along the river side, along the railway lines, and the final waste disposal sites. The linkage between poverty index values with the physical morphology and vegetation of an area can be identified by the use of technology and remote sensing (RS). The accuracy of the analysis of poor housing with RS technology relies on the image quality of Very High Resolution (VHR) satellite and the completeness of the dataset Geographic Information Systems (GIS). Geo-spatial technologies are integrated as RS, GIS, and Global Positioning System (GPS) can contribute interactively in the assessment, understanding and mapping to solve the complex problem of residential in Indonesia.

Advanced Transport Telematics Positioning Requirements: An Assessment of GPS Performance in Greater London

1999 ◽  
Vol 52 (3) ◽  
pp. 342-355 ◽  
Author(s):  
W. Y. Ochieng ◽  
P. J. Shardlow ◽  
Gordon Johnston
Keyword(s):  
Global Positioning System ◽  
Urban Areas ◽  
Architectural Design ◽  
Positioning System ◽  
Levels Of Detail ◽  
Global Positioning ◽  
Temporal And Spatial ◽  
Vehicle Positioning ◽  
Transport Telematics ◽  
Design And Testing

This paper presents the results of a study carried out in the Greater London area to assess and characterise the performance of the Global Positioning System (GPS) for vehicle positioning in urban areas. The performance assessment addresses, in varying levels of detail, the issues of service coverage, positioning accuracy, integrity and availability of service. The project was supported by Racal Survey Limited and is part of the wider research at Imperial College in the area of architectural design and testing of Advanced Transport Telematics (ATT) systems. The results highlight the shortcomings of GPS as the sole means for in-car navigation in urban areas and details the temporal and spatial considerations to be taken into account in the process of designing an integrated positioning system capable of meeting navigation requirements placed on ATT systems.

Geostationary Satellite Coverage for Surface Applications of Differential Global Positioning system

1998 ◽  
Vol 1625 (1) ◽  
pp. 35-40
Author(s):  
James A. Arnold
Keyword(s):  
Global Positioning System ◽  
Urban Areas ◽  
Geostationary Satellite ◽  
Tree Canopy ◽  
Positioning System ◽  
Irregular Terrain ◽  
Geostationary Satellites ◽  
Global Positioning ◽  
Signal Fading ◽  
Differential Global Positioning System

The coverage issues surrounding the use of geostationary satellites for surface applications using Differential Global Positioning System (DGPS) data are examined. The Federal Aviation Administration’s Wide Area Augmentation System plan to use geostationary satellites to provide differential corrections for aviation users is presented. Impediments to coverage include man-made structures, irregular terrain (i.e., mountains), and attenuation or signal fading due to tree canopy. Each of the impediments is examined and an assessment is made of their effects on coverage. Various user groups require ubiquitous coverage, and a geostationary satellite broadcast of corrections does not provide this. Large gaps will exist in rural and urban areas, and signal fading due to tree canopy will be significant over much of the country. Alternative communication techniques, such as the U.S. Coast Guard Low Frequency Radiobeacon DGPS service, should be used to meet surface user requirements.

scholarly journals Spatial clustering of cholera cases in the Kathmandu Valley: implications for a ring vaccination strategy

2020 ◽  
Author(s):  
Mellisa Roskosky ◽  
Mohammad Ali ◽  
Shyam Raj Upreti ◽  
David Sack
Keyword(s):  
Global Positioning System ◽  
Urban Areas ◽  
Index Case ◽  
Spatial Clustering ◽  
Vaccination Strategy ◽  
Kathmandu Valley ◽  
Positioning System ◽  
Cholera Outbreak ◽  
Ring Vaccination ◽  
Global Positioning

Abstract Background In mid-2016, a cholera outbreak occurred in Kathmandu Valley, Nepal. This retrospective study aims to determine if a reactive, ring vaccination strategy would have been useful in preventing cholera transmission during that outbreak. Methods Data on cholera cases were collected as part of hospital-based surveillance in the Kathmandu Valley in 2016. Global Positioning System (GPS) coordinates were obtained during household visits. Geographic clusters of cases were visually determined and tested statistically for clustering. Cluster size was determined based on the distribution of cases around the index case. Results GPS coordinates for 69 cases were analysed. Six geographic clusters were identified, all of which showed significant clustering of cases. Approximately 85% of cases within a cluster occurred more than 7 d after the index case. The median ring size was 1 km, with a population of 14 000 people. Conclusions Cholera cases were clustered in space and the majority of cases occurred over 1 week after the initial cases in the cluster, allowing for an opportunity to prevent transmission through the use of the vaccine soon after the initial case was identified. A ring vaccination strategy may be especially useful for large urban areas with recurrent seasonal outbreaks but where the specific locations for such outbreaks are not predictable.

Aplikasi Pemosisi Lokal Berbasis Android Dengan Menggunakan GPS

INTI TALAFA ◽  
2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Yaman Khaeruzzaman
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Database Server ◽  
Global Positioning

Seiring dengan pesatnya kemajuan teknologi saat ini, kebutuhan manusia menjadi lebih beragam, termasuk kebutuhan akan informasi. Tidak hanya media informasinya yang semakin beragam, jenis informasi yang dibutuhkan juga semakin beragam, salah satunya adalah kebutuhan informasi akan posisi kita terhadap lingkungan sekitar. Untuk memenuhi kebutuhan itu sebuah sistem pemosisi diciptakan. Sistem pemosisi yang banyak digunakan saat ini cenderung berfokus pada lingkup ruang yang besar (global) padahal, dalam lingkup ruang yang lebih kecil (lokal) sebuah sistem pemosisi juga diperlukan, seperti di ruang-ruang terbuka umum (taman atau kebun), ataupun dalam sebuah bangunan. Sistem pemosisi lokal yang ada saat ini sering kali membutuhkan infrastruktur yang mahal dalam pembangunannya. Aplikasi Pemosisi Lokal Berbasis Android dengan Menggunakan GPS ini adalah sebuah aplikasi yang dibangun untuk memenuhi kebutuhan pengguna akan informasi lokasi dan posisi mereka terhadap lingkungan di sekitarnya dalam lingkup ruang yang lebih kecil (lokal) dengan memanfaatkan perangkat GPS (Global Positioning System) yang telah tertanam dalam perangkat smartphone Android agar infrastruktur yang dibutuhkan lebih efisien. Dalam implementasinya, Aplikasi Pemosisi Lokal ini bertindak sebagai klien dengan dukungan sebuah Database Server yang berfungsi sebagai media penyimpanan data serta sumber referensi informasi yang dapat diakses melalui jaringan internet sehingga tercipta sebuah sistem yang terintegrasi secara global. Kata kunci: aplikasi, informasi, pemosisi, GPS.

148. Use of Global Positioning System Technology to Track Subjects' Location During Environmental Exposure Sampling

2000 ◽  
Author(s):  
M. Phillips ◽  
R. Clinkenbeard ◽  
T. Hall ◽  
D. Johnson ◽  
R. Lynch ◽  
...  
Keyword(s):  
Environmental Exposure ◽  
Global Positioning System ◽  
Positioning System ◽  
System Technology ◽  
Global Positioning

The Distribution of Hospitality Services in Uyo Urban, Nigeria

2018 ◽  
pp. 137-150
Author(s):  
Violet Bassey Eneyo
Keyword(s):  
Data Collection ◽  
Global Positioning System ◽  
Central Area ◽  
Positioning System ◽  
Nearest Neighbour ◽  
Global Positioning ◽  
Neighbour Analysis

This paper examines the distribution of hospitality services in Uyo Urban, Nigeria. GIS method was the primary tool used for data collection. A global positioning system (GPS) Garmin 60 model was used in tracking the location of 102 hospitality services in the study area. One hypothesis was stated and tested using the nearest neighbour analysis. The finding shows evidence of clustering of the various hospitality services. The tested hypothesis further indicated that hospitality services clustered in areas that guarantee a sustainable level of patronage to maximize profit. Thus, the hospitality services clustered in selected streets in the metropolis while limited numbers were found outside the city’s central area.

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