Why the Railroad Chose the Coastal Route: A Map-Reading Judgement
A fictional prefecture has two possible routes for a new freight railway between an inland industrial city (City P) and a port (Port Q). Route 1 follows the coast: 95 km, crosses four river mouths on long bridges, passes through a narrow plain 2–4 km wide, and serves three fishing towns. Route 2 goes inland: 120 km, tunnels through a 900 m mountain range, follows a river valley, and serves one small farming town. The inland city P produces steel and chemicals and needs to import iron ore and coal through Port Q. The prefecture must also decide where to place a new freight terminal.
1. Which route better serves the stated economic purpose, and what geographic features decide it?
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The purpose is bulk freight: heavy, low-value raw materials in and heavy products out. Freight favors grades and distance over scenery. Route 1 is 25 km shorter and stays on flat coastal plain, so it avoids the steep gradients and long tunnel of Route 2, which raise construction and operating costs for heavy trains. River mouths require bridges but are manageable; the narrow plain is a constraint only for terminal land, not through-running. Judgement: Route 1 is better for freight, provided bridge engineering is sound. Route 2's mountain tunnel is a fixed, expensive cost that bulk cargo cannot easily justify. The map features that decide it are relief (plain vs. mountain), distance, and the location of the port and industrial city - not the number of towns served.
2. Where should the freight terminal go, and how does the choice affect the fishing towns?
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The terminal should sit where the coastal route meets City P's transport network, on flat land with room for rail yards and truck access - likely at the edge of the narrow plain near P rather than in a fishing town, because a bulk terminal needs large flat area and would displace the towns' harbors and housing. Serving the fishing towns is a passenger benefit, not a freight one; mixing heavy freight with town centers creates safety and noise problems. Judgement: separate functions - freight terminal near the industrial city on open flat land, small passenger stops for the towns. This captures the freight benefit without forcing a land-use conflict on the narrow coastal settlements.