예비고3 수능 영어 · 첫 병목 진단 4문항

People often assume that a faster route is always a better route. A city tested a navigation system that recommended the shortest travel time for delivery bicycles. During quiet hours, the recommendations worked well. During crowded hours, however, some riders entered narrow streets where frequent stops made the route slower and less safe. The system had measured distance and average speed but had not included the cost of repeated stops. After researchers added that factor, the recommended routes became slightly longer in distance but more reliable in actual travel time. The trial shows that efficiency depends on which costs a model counts, not simply on minimizing one visible number. A later evaluation will compare weather conditions, which the first trial did not examine.

People often assume that a faster route is always a better route. A city tested a navigation system that recommended the shortest travel time for delivery bicycles. During quiet hours, the recommendations worked well. During crowded hours, however, some riders entered narrow streets where frequent stops made the route slower and less safe. The system had measured distance and average speed but had not included the cost of repeated stops. After researchers added that factor, the recommended routes became slightly longer in distance but more reliable in actual travel time. The trial shows that efficiency depends on which costs a model counts, not simply on minimizing one visible number. A later evaluation will compare weather conditions, which the first trial did not examine.

People often assume that a faster route is always a better route. A city tested a navigation system that recommended the shortest travel time for delivery bicycles. During quiet hours, the recommendations worked well. During crowded hours, however, some riders entered narrow streets where frequent stops made the route slower and less safe. The system had measured distance and average speed but had not included the cost of repeated stops. After researchers added that factor, the recommended routes became slightly longer in distance but more reliable in actual travel time. The trial shows that efficiency depends on which costs a model counts, not simply on minimizing one visible number. A later evaluation will compare weather conditions, which the first trial did not examine.

People often assume that a faster route is always a better route. A city tested a navigation system that recommended the shortest travel time for delivery bicycles. During quiet hours, the recommendations worked well. During crowded hours, however, some riders entered narrow streets where frequent stops made the route slower and less safe. The system had measured distance and average speed but had not included the cost of repeated stops. After researchers added that factor, the recommended routes became slightly longer in distance but more reliable in actual travel time. The trial shows that efficiency depends on which costs a model counts, not simply on minimizing one visible number. A later evaluation will compare weather conditions, which the first trial did not examine. In a winter trial, the adjusted system remains reliable on dry days, but no trips are recorded during snow or heavy rain.