Showing papers on "Service level published in 1987"

Field Service Reporting and Spares Control: A Two‐way System

Abstract: Field operations at Wang UK Limited have been revolutionised by a system which ensures that emergency requests for service and routine maintenance are effectively carried out by engineers. Customer service is recognised as an essential part of the computer industry's success. Shorter response times and higher service levels are required and can be achieved only by efficient two‐way information transfer. Wang's remote hand‐held terminals, connected to a centralised minicomputer, are focused on. The system is easy to use and has several advantages in terms of the costs, time and travel of the service engineers. Bar coding is used to log the flows of the major spare parts and will later be extended to the whole range of parts.

Alternative routing and scheduling schemes for specialized transportation vehicles

Abstract: This paper examines vehicle routing and scheduling schemes for specialized transportation for the elderly and handicapped. In the light of increasing pressure to increase operating efficiency and to improve service quality at the same time, it is important to review and classify vehicle routing and scheduling patterns and identify the optimal operating environment for each scheme. The paper consists of two parts. The first part develops different routing and scheduling alternatives and classify them into a spectrum of regimes ranging from a taxi-type fully flexible regime to a rigidly scheduled fixed-route fixed-schedule regime. The trade-off between the operating efficiency and quality of service is considered in the classification. Among the regimes in the spectrum, a zone-based vehicle routing and scheduling scheme is a structured scheme to improve operating efficiency when compared with the conventional demand responsive scheme. The second part of the paper presents the zone-based scheme implemented in New Castle County, Delaware, and evaluates its performance with respect to its impacts on operating efficiency and the quality of service. The zone-based schedule has resulted in a significant operating efficiency improvement without lowering passenger service level, and thus it poses a viable alternative to the traditional routing and scheduling method for specialized transportation.

Effects of level of bus service on passenger demand

Abstract: In order to improve the bus service, exclusive bus lanes, bus priority signals, bus bays, and a bus location system have been combined into a key route bus system. This system started a service for the first time in 1982 on the toko line, then in 1985 on the shin-dekicho line, both in nagoya. Owing to the exclusive bus lanes and bus priority signals, the key route buses were faster in speed than ever and arrived almost on schedule. Thus, passengers of these buses have increased in number. There were also some examples that have changed their travel modes from cars to key route buses. In this paper, the effects of key route bus system on passenger demand are summarized briefly at the outset. Then, the effects of the bus service level on the bus passenger demand are analyzed using the data collected on the toko line. Disaggregate models predicting the mode choice are obtained and time and cost elasticities are calculated. It was found that the service level in the line-haul (in-vehicle time and line-haul cost) has a greater effect than the access time or cost. (Author/TRRL)