Jocelyn S. Nickerson, B. Bowen, R. Smith, S. Tarry, M. Moussavi
The aviation industry is a rapidly changing entity of the world's economy. Millions of travelers consistently choose aviation as their mode of transportation because it is reliable, time-efficient, and safe. However, high demand has led to delays, cancellations, and gridlock. As the need for efficient travel options increases, passengers will look for other avenues of travel. The National Aeronautics and Space Administration (NASA) and its partners are developing a unique and innovative alternative for this problem. The solution, known as the Small Aircraft Transportation System (SATS), will likely change the face of general aviation as it is known today. It is a clear concept, made credible by extensive research. The members of the Public Administration Department and the Aviation Institute of the University of Nebraska at Omaha have committed many of their resources to the successful realization of the SATS concept. These individuals have formed a unique Nebraska SATS research team, devoting their valuable time and effort to seeing the dream of SATS come true.
{"title":"INNOVATIVELY SAVING THE FUTURE OF TRANSPORTATION: SMALL AIRCRAFT TRANSPORTATION SYSTEM (SATS)","authors":"Jocelyn S. Nickerson, B. Bowen, R. Smith, S. Tarry, M. Moussavi","doi":"10.5038/2375-0901.5.3.4","DOIUrl":"https://doi.org/10.5038/2375-0901.5.3.4","url":null,"abstract":"The aviation industry is a rapidly changing entity of the world's economy. Millions of travelers consistently choose aviation as their mode of transportation because it is reliable, time-efficient, and safe. However, high demand has led to delays, cancellations, and gridlock. As the need for efficient travel options increases, passengers will look for other avenues of travel. The National Aeronautics and Space Administration (NASA) and its partners are developing a unique and innovative alternative for this problem. The solution, known as the Small Aircraft Transportation System (SATS), will likely change the face of general aviation as it is known today. It is a clear concept, made credible by extensive research. The members of the Public Administration Department and the Aviation Institute of the University of Nebraska at Omaha have committed many of their resources to the successful realization of the SATS concept. These individuals have formed a unique Nebraska SATS research team, devoting their valuable time and effort to seeing the dream of SATS come true.","PeriodicalId":394536,"journal":{"name":"The Journal of Public Transportation","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"118620289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this article, a hybrid algorithm based on heuristics and optimization is presented for the calculation of urban transit itineraries including information on pedestrian access and egress paths, route sequences, schedules, and stops. The use of the Transit User Information System (TUIS) to support the calculations is emphasized. The TUIS uses the Totally Disaggregate Approach (TDA) and Transportation Object-Oriented Modeling (TOOM) in transportation to gather data on territory (for origin and destination specifications and for the pedestrian network) and transit operation (route geometry, schedules). Websites that have been implemented are referenced to demonstrate the applicability of the hybrid algorithm. These websites make use of some special techniques for disseminating user information over the Internet.
{"title":"Transit Itinerary Calculation on the Web: Based on a Transit User Information System","authors":"M. Trépanier, R. Chapleau, B. Allard","doi":"10.5038/2375-0901.5.3.2","DOIUrl":"https://doi.org/10.5038/2375-0901.5.3.2","url":null,"abstract":"In this article, a hybrid algorithm based on heuristics and optimization is presented for the calculation of urban transit itineraries including information on pedestrian access and egress paths, route sequences, schedules, and stops. The use of the Transit User Information System (TUIS) to support the calculations is emphasized. The TUIS uses the Totally Disaggregate Approach (TDA) and Transportation Object-Oriented Modeling (TOOM) in transportation to gather data on territory (for origin and destination specifications and for the pedestrian network) and transit operation (route geometry, schedules). Websites that have been implemented are referenced to demonstrate the applicability of the hybrid algorithm. These websites make use of some special techniques for disseminating user information over the Internet.","PeriodicalId":394536,"journal":{"name":"The Journal of Public Transportation","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115419797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Public policy makers have recognized the need to seek urban passenger transportation solutions in the domain of urban transit systems. In this article, the Analytical Hierarchy Process (AHP) is proposed as a decision support methodology for evaluation of system choice, and an illustrative example is presented. The hierarchy reflects overall objectives of transit systems, which include achieving betterment in the urban transit picture and mitigating possible implementation impediments. On the betterment side, the transit system objectives considered in the hierarchy include appropriate level of service and performance, congestion reduction potential, support of economic development, and flexibility. On the other hand, transit system impediment factors comprise system cost, environmental impacts, and implementation and operation barriers. The article demonstrates the value of the proposed approach in decision structuring for selecting among urban transit alternatives and in providing the facility of analyzing the robustness of the decision with respect to various judgements that are made in the selection process.
{"title":"Decision Structuring and Robustness Analysis in Selecting Urban Transit Alternatives","authors":"I. Kaysi, M. Abdul-Malak","doi":"10.5038/2375-0901.4.1.5","DOIUrl":"https://doi.org/10.5038/2375-0901.4.1.5","url":null,"abstract":"Public policy makers have recognized the need to seek urban passenger transportation solutions in the domain of urban transit systems. In this article, the Analytical Hierarchy Process (AHP) is proposed as a decision support methodology for evaluation of system choice, and an illustrative example is presented. The hierarchy reflects overall objectives of transit systems, which include achieving betterment in the urban transit picture and mitigating possible implementation impediments. On the betterment side, the transit system objectives considered in the hierarchy include appropriate level of service and performance, congestion reduction potential, support of economic development, and flexibility. On the other hand, transit system impediment factors comprise system cost, environmental impacts, and implementation and operation barriers. The article demonstrates the value of the proposed approach in decision structuring for selecting among urban transit alternatives and in providing the facility of analyzing the robustness of the decision with respect to various judgements that are made in the selection process.","PeriodicalId":394536,"journal":{"name":"The Journal of Public Transportation","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128175781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article examines the findings of an investigation of senior travelers' willingness to use several advanced transit systems. Elderly travelers were surveyed to evaluate their acceptance of a real time paratransit and several transit information systems. The likelihood of using each system was estimated using the binary probit modeling methodology. The analysis showed that gender, income, age, type of trips recently made, and several perception related variables are among the factors that affect the decision to accept the new transportation systems. The study also showed the important potential of several transportation technologies to increase the mobility and alleviate the transportation difficulties of the elderly population. In addition, the results illustrated the willingness of many groups of senior travelers to use new transportation systems in an attempt to reduce their travel problems.
{"title":"MODELING SENIOR TRAVELERS' ACCEPTANCE OF NEW TRANSIT SYSTEMS","authors":"M. Abdel-Aty","doi":"10.5038/2375-0901.2.3.5","DOIUrl":"https://doi.org/10.5038/2375-0901.2.3.5","url":null,"abstract":"This article examines the findings of an investigation of senior travelers' willingness to use several advanced transit systems. Elderly travelers were surveyed to evaluate their acceptance of a real time paratransit and several transit information systems. The likelihood of using each system was estimated using the binary probit modeling methodology. The analysis showed that gender, income, age, type of trips recently made, and several perception related variables are among the factors that affect the decision to accept the new transportation systems. The study also showed the important potential of several transportation technologies to increase the mobility and alleviate the transportation difficulties of the elderly population. In addition, the results illustrated the willingness of many groups of senior travelers to use new transportation systems in an attempt to reduce their travel problems.","PeriodicalId":394536,"journal":{"name":"The Journal of Public Transportation","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124489838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article develops a theory on commercial property value with respect to both transit station proximity and the role of policies that encourage commercial development around transit stations without discouraging commercial development elsewhere. The theory is applied to the universe of commercial property sales in the area of Atlanta known as "Midtown", which is located about 1 kilometer (.6 mi) north of the downtown edge. Midtown is served by three heavy rail transit stations operated by the Metropolitan Atlanta Transit Authority (MARTA). To encourage development around MARTA stations, Atlanta waives parking and floor area ration requirements in Special Public Interest Districts (SPIDs) located around rail stations. Research shows that commercial property values are influenced positively by both access to rail stations and policies that encourage more intensive development around those stations. The article explores both theoretical and policy implications.
{"title":"TRANSIT STATIONS AND COMMERCIAL PROPERTY VALUES: A CASE STUDY WITH POLICY AND LAND-USE IMPLICATIONS","authors":"A. Nelson","doi":"10.5038/2375-0901.2.3.4","DOIUrl":"https://doi.org/10.5038/2375-0901.2.3.4","url":null,"abstract":"This article develops a theory on commercial property value with respect to both transit station proximity and the role of policies that encourage commercial development around transit stations without discouraging commercial development elsewhere. The theory is applied to the universe of commercial property sales in the area of Atlanta known as \"Midtown\", which is located about 1 kilometer (.6 mi) north of the downtown edge. Midtown is served by three heavy rail transit stations operated by the Metropolitan Atlanta Transit Authority (MARTA). To encourage development around MARTA stations, Atlanta waives parking and floor area ration requirements in Special Public Interest Districts (SPIDs) located around rail stations. Research shows that commercial property values are influenced positively by both access to rail stations and policies that encourage more intensive development around those stations. The article explores both theoretical and policy implications.","PeriodicalId":394536,"journal":{"name":"The Journal of Public Transportation","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124810434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Automatic Vehicle Location (AVL) systems can track transit vehicles in real time. Computer-Aided Dispatch (CAD) software is used to monitor transit operations and assist management of transit operations. Together with AVL systems, CAD software can be used to replace a disabled vehicle by dispatching another vehicle, or meet fluctuating travel demand by adjusting transit headways, schedules, and routes. AVL and CAD technologies can vitalize transit by directly improving on-time performance, increasing transit efficiency through providing dispatchers with location, direction and status information, and reducing operating costs through reducing dependence on transit field supervisory personnel. This study explores the development, availability, and impacts of AVL/CAD technologies as reported by AVL vendors and transit implementers. The study defines the key features, functions, and performance characteristics of AVL/CAD technologies that can influence the level of benefits realized. The AVL/CAD implementation context is explored by examining where, when, and for what users these systems are being implemented. This research provides a systematic method for evaluation of AVL/CAD systems and reports the perceptions of AVL/CAD vendors and transit implementers regarding available products and their impacts.
{"title":"AUTOMATIC VEHICLE LOCATION AND COMPUTER-AIDED DISPATCH SYSTEMS DESIGN AND APPLICATION CONSIDERATIONS","authors":"A. Khattak, M. Hickman","doi":"10.5038/2375-0901.2.1.1","DOIUrl":"https://doi.org/10.5038/2375-0901.2.1.1","url":null,"abstract":"Automatic Vehicle Location (AVL) systems can track transit vehicles in real time. Computer-Aided Dispatch (CAD) software is used to monitor transit operations and assist management of transit operations. Together with AVL systems, CAD software can be used to replace a disabled vehicle by dispatching another vehicle, or meet fluctuating travel demand by adjusting transit headways, schedules, and routes. AVL and CAD technologies can vitalize transit by directly improving on-time performance, increasing transit efficiency through providing dispatchers with location, direction and status information, and reducing operating costs through reducing dependence on transit field supervisory personnel. This study explores the development, availability, and impacts of AVL/CAD technologies as reported by AVL vendors and transit implementers. The study defines the key features, functions, and performance characteristics of AVL/CAD technologies that can influence the level of benefits realized. The AVL/CAD implementation context is explored by examining where, when, and for what users these systems are being implemented. This research provides a systematic method for evaluation of AVL/CAD systems and reports the perceptions of AVL/CAD vendors and transit implementers regarding available products and their impacts.","PeriodicalId":394536,"journal":{"name":"The Journal of Public Transportation","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"118603473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Increasing the use of public bus transportation and decreasing the use of private modes is seen as the remedy for New Delhi's congested streets and polluted air. To achieve this, the provision of bus services should be privatized to reduce the financial burden on the government and augment capacity. It will be necessary to regulate the privatized system to improve safety; prevent private operators from concentrating only on the denser routes; improve reliability, punctuality, and other standards of quality; rationalize fares; and improve network design. The article discusses each of the above goals and assesses the applicability in the New Delhi context of the different privatization models used internationally to meet these goals. Two composite strategies are recommended for meeting all of the goals: the gross cost option and the net cost option.
{"title":"Defining the Gross Cost and Net Cost Options for New Delhi Public Transport","authors":"Aaron Windecker","doi":"10.5038/2375-0901.5.1.5","DOIUrl":"https://doi.org/10.5038/2375-0901.5.1.5","url":null,"abstract":"Increasing the use of public bus transportation and decreasing the use of private modes is seen as the remedy for New Delhi's congested streets and polluted air. To achieve this, the provision of bus services should be privatized to reduce the financial burden on the government and augment capacity. It will be necessary to regulate the privatized system to improve safety; prevent private operators from concentrating only on the denser routes; improve reliability, punctuality, and other standards of quality; rationalize fares; and improve network design. The article discusses each of the above goals and assesses the applicability in the New Delhi context of the different privatization models used internationally to meet these goals. Two composite strategies are recommended for meeting all of the goals: the gross cost option and the net cost option.","PeriodicalId":394536,"journal":{"name":"The Journal of Public Transportation","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125712208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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