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The study explored whether the growth of food-delivery services has affected motorcycle accident patterns. When riders check their phones for directions and orders, safety risks rise. The study conducted analysis on the spatial pattern of motorcycle accidents. Separate models for food delivery and non-food delivery motorcycle accidents (FDMAs vs. NFDMAs) were built to detect differences, and the relative importance of spatial features particular to FDMAs is discussed. Trends in motorcycle accidents in Taiwan changed from 2012 to 2019. The cross-sectional analysis revealed that hotel and restaurant density along with FDMAs reported in the previous year can predict the number of FDMAs; whereas the number of NFDMAs can be determined by population density and the number of 3-legged intersections. The spatial analysis of motorcycle accidents help increase couriers' risk awareness in specific workplaces, provide insurance companies with a benchmark for regional pricing differentiation, and offer support for distracted riding regulations. [ABSTRACT FROM AUTHOR]

This study addresses a capacitated vehicle routing problem with time windows and simultaneous pickup and delivery (VRPTWPD) for scheduling bus-type taxis formerly served by regular buses. The effects of varying the maximum number of passenger seats on service quality and costs are investigated. Taiwan's government has subsidized public transport in order to ensure consistency between service shifts and demands, improve the efficiency of public transport operations, and maintain an ongoing supply of services while reducing the number of scooters and/or private cars on roads to minimize traffic congestion. Ultimately, the intent is to reduce government subsidies further and maintain service quality at reasonable levels. Transit planners have also introduced the Demand Responsive Transit System (DRTS) to connect routes. Particularity in rural areas, local transit planners have replaced buses with taxis to form a bus-type taxi service that increases efficiency. As a consequence, the transit service in low-density or rural areas has not been abandoned. The study acknowledges that optimal routes for successful bus-type taxis services vary by area. Routing and scheduling results will assist route planners' efforts to provide sufficient transit services in rural areas. The study results also suggest that further reductions in government subsidies are possible. [ABSTRACT FROM AUTHOR]

This study collected the annual revenue data of the top three supermarket chains in Taiwan (PX Mart, Simple Mart, and Wellcome), shopping frequency in supermarkets, and the average expenditure of the general public in order to construct models for simulating supermarket revenue by calibrating model parameters to the actual data. This study employed the competing destinations model (CDM) to designate supermarket shoppers' shopping areas and simulate supermarket sales. The CDM calculated the probability of consumers selecting each supermarket, simulated the total revenues of supermarkets and the average daily revenue of a single store using the expenditure equation, and added spatial competition and agglomeration effect parameters to the model to observe variations in revenue with changing parameter values. The study results revealed profitable expansion opportunities and highly competitive locations not advised for new outlets. Beitou district had the lowest population density in Taipei City yet a high-sales cluster, making it an area suitable for new PX Mart stores. Shilin and Xinyi districts could also be considered suitable areas for new stores because they had insignificant distributions of stores, high-sales clusters, and competition was not yet severe. The study extends the use of analytical revenue and spatial models to empirically study the agglomeration forces between supermarket chains, analyzes the influence of distance variation on supermarket revenues, and determines the most suitable locations for the future inauguration of supermarket stores in Taipei City. • This study collected the annual revenue data of the top three supermarket chains in Taiwan. • The agglomeration forces between supermarket chains were investigated. • This study constructed models for simulating supermarket revenue by calibrating parameters to the actual data. • The study analyzed the influence of distance variation on supermarket revenues. • The study results revealed profitable expansion opportunities. [ABSTRACT FROM AUTHOR]