Vuchic, Vukan R
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Publication Skip-Stop Operation as a Method for Transit Speed Increase(1973-04-01) Vuchic, Vukan RIncrease of transit speeds is one of the most effective ways of increasing the attractiveness of transit for urban travel. While surface transit in particular suffers from low speed, the desirability of higher speeds is not limited to it. Rapid transit has adequate speed for short to medium-distance trips in urban areas. However, for longer trips, particularly when there is a competing freeway facility, the requirement for speed is rather high. Since many station spacings are adopted on the basis of area coverage, high operating speed of the trains often cannot be achieved. Thus, typical lines of urban rapid transit with average interstation spacings of approximately one-half mile have only limited length on which their speeds are satisfactory; for distances longer than, typically, 5-7 miles, they often become too slow. This is becoming an increasing problem with the spatial spread of cities. This article describes the main alternative solutions to this problem and then focuses on the skip-stop operation, presenting a methodology for its analysis and evaluation of its applicability. Although the article discusses rail services, the basic aspects of the problem are common for any technology. For example, there are a number of bus services for which skip-stop service could be considered utilizing the methodology developed here.Publication Skip-Stop Operation: High Speed With Good Area Coverage(1976) Vuchic, Vukan RIncrease of transit speeds is one of the most effective ways of increasing the attractiveness of transit for urban travel. While surface transit in particular suffers from low speed, the desirability of higher speeds is not limited to it. Rapid transit has adequate speed for short to medium-distance trips in urban areas. However, for longer. trips, particularly when there is a competing freeway facility, the requirement for speed is rather high. Since many station spacings are adopted on the basis of area coverage, high operating speed of the trains often cannot be achieved. Thus, typical lines of urban rapid transit with average interstation spacings of approximately 800 metres have only limited length on which their speeds are satisfactory; for distances longer than, typically, 8-10 km, they often become too slow. This is becoming an increasing problem with· the spatial spread of cities. This article describes the main alternative solutions to this problem and then focuses on the skip-stop operation, presenting a methodology for its analysis and evaluation of its applicability. The article refers to rail services, but the basic aspects of the problem are common for any technology. For example, there are light rail and bus services for which skip-stop service could be considered utilizing the methodology developed here.Publication Federation of Transit Agencies as a Solution for Service Integration(1970-07-01) Homburger, Wolfgang S; Vuchic, Vukan RInadequate organization of public transport services in urban areas, particularly in the large ones, is one of the major reasons for the unsatisfactory level of service and economic problems of the operating companies. Despite the current trend toward mergers of transit operators into large public agencies, the services in most cities remain fragmented in various degrees; integration is often not in sight due to organizational problems which appear insurmountable. Losses to the users, various degrees; integration is often not in sight due to organization. This article briefly analyzes the reasons for this situation, explores its consequences and their importance. A number of solutions for the problem are possible, but none of them is simple and easy to achieve. The federation of transit organizations introduced recently in Hamburg, Germany, has proved to be so successful that it has received wide attention in international professional circles. This solution therefore deserves a careful study by transit operators as well as government officials of metropolitan areas in this country.Publication Deregulierung – ein Rückfall ins Primitive?(1987) Vuchic, Vukan RPublication Evaluating UMTA’s Work(1976) Vuchic, Vukan RThe period of economic expansion and affluence since World War II created a strong tendency to base planning on unquestioned extrapolation of past trends. This method is acceptable in areas where the developmental trends are in desirable directions. But when this is not the case, this method does not represent rational planning, since its effect is to continue and encourage undesirable developments. Urban transportation has suffered greatly from this type of planning; many of our national and metropolitan area transportation studies placed a heavy reliance on .continuation of growth in auto ownership, VMT's, decentralization, etc. They failed to set clear goals for public transportation and standards for its service.Publication Light Rail and BRT: Competitive or Complementary?(2005-01-01) Vuchic, Vukan RSince the 1970s great progress has been made to develop transit systems which provide service considerably better than buses can offer in mixed traffic, but which require significantly lower investment than metro systems with exclusive ways. This “semirapid transit” category of modes, using mostly partially separated ways, has been introduced extensively in medium-sized cities, as well as supplementing metros in suburban areas of large cities.Publication High-Performance Transit Planning Modes and Networks(1980-12-01) Vuchic, Vukan RFrom the introduction: "In planning our lectures for this seminar, my colleagues and I have decided that we present here an overview of the problems of cities today, of the role of public transportation, and especially high-performance public transportation, as well as some details of planning, and characteristics of modes, their design and operations. We will thus try to combine, as much as the time allows, a general overview with technical details which many of you will be facing when you will be planning and implementing your rapid transit project in the years to come."Publication Heavy Obstacles for Light Rail(1977-09-01) Vuchic, Vukan RClose to 500 persons, including government officials, transit system operators, city planners, car builders, suppliers, and consultants, came to Boston Aug. 28-31 for a "National Conference on Light Rail Transit." Although the size of the crowd was evidence of light rail's growing popularity (RA, Aug. 8, p. 36), the conference also heard warnings about trends that could hamper the growth of light rail. Vukan R. Vuchic, professor of transportation engineering at the University of Pennsylvania, discussed some of those disturbing trends in a speech delivered at the meeting. Following are excerpts of his remarks.Publication Rapporto di Vukan Vuchic in Linea C: La Scelta Tecnologica: Un'expertise Internazionale(1996) Vuchic, Vukan RTra le opere previste per ii giubileo del 2000, Cotral ha progettato di costruire la terza linea di metropolitana di Roma, linea C. L'ipotesi avanzata e di realizzare tale linea utilizzando la tecnologia ferroviaria standard, aggiornata ai suoi ultimi sviluppi tecnologici. In seguiLo, altri soggetti hanno proposto di modificare questa impostazione, suggerendo principalmente quanto segue: impiego di un sistema a guida automatizzata (Automated Guided Transit, Agt, come Val, Kawasaki, Westinghouse sistemi Utdc) invece del sistema ferroviario standard. Tra questi sistemi e posto in particolare rilievo ii Val; realizzazione della linea, attraverso un contratto chiavi in mano, da parte di un singolo soggetto attuatore invece che da più soggetti, sotto ii control lo dell' Amministrazione Comunale; sostituzione o integrazione alla linea C con una linea Circolare. Per selezionare la soluzione più vantaggiosa per la città di Roma, Cotral ha chiesto ad alcuni esperti di trasporto r urbano, tra i quali l'autore di questo rapporto, di condur e un 'analisi comparata delle diverse opzioni c di formulare raccomandazioni circa la soluzione ottimale per la costruzione della linea C nel quadro delle opere per ii giubileo dell' anno 2000.Publication A Critique of the Delaware Valley Regional Planning Commission 1985 Regional Transportation Plan(1969-10-30) Boyce, David E; Vuchic, Vukan RThe 1985 Regional Transportation Plan of the Delaware Valley Regional Planning Commission (Plan Report No. 5) is one of the most detailed and informative reports published to date by a transportation planning agency. The Report reflects several advances in urban transportation planning procedures made by DVRPC. Nevertheless, the Report does contain a number of very serious deficiencies. In an attempt to make a constructive contribution to transportation planning in the Delaware Valley Region, the authors of this Critique analyze these deficiencies and propose general and specific improvements for the Transportation Plan.