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The main line service distance between two stops is?
5 km
10 km
5 TO 10 km
More than 10 km
More than 10 km
In electric traction systems, service categories are determined by the distance between consecutive stops. The main line service, which typically involves long-distance passenger or freight trains, is characterized by a distance between stops that is significantly longer than suburban or urban rail services.
In electric traction systems, service categories are determined by the distance between consecutive stops. The main line service, which typically involves long-distance passenger or freight trains, is characterized by a distance between stops that is significantly longer than suburban or urban rail services.
E=21тАЛMv2 тАФ kinetic energy involved during acceleration phase
vavgтАЛ=TDтАЛ тАФ average speed relation, where D is distance between stops
Main line service involves high-speed, long-distance operations where the frequency of stops is low to minimize acceleration and braking losses. Because trains spend the majority of their travel time at constant cruising speeds, the inter-stop distance is maintained at more than 10 km to ensure energy efficiency and scheduled reliability.
Main line services focus on high speed and long distance travel.
Urban services typically have stops every 1тАУ5 km.
Suburban services typically have stops every 2тАУ8 km.
Main line services require higher power ratings due to increased mass and higher cruising speeds.
Higher energy efficiency due to fewer stops
Reduced wear and tear on braking systems
Better schedule adherence for long-haul routes
Requires high investment in signaling and infrastructure
Longer wait times for passengers at remote stations
Inter-city Express trains
High-speed rail corridors
Heavy freight transit
Urban/Suburban services are characterized by frequent stops and high acceleration rates to maintain a decent average speed.
Main line service is defined by fewer stops and high steady-state cruising speeds, generally exceeding 10km per stop.
D is correct тАФ Main line service is characterized by long distances between stops, specifically greater than 10 km, which allows trains to operate at high sustained speeds.
In traction exams, remember: Urban = Frequent/Short distance; Suburban = Intermediate; Main Line = Infrequent/Long distance (> 10 km).