Many rail firms enjoy a virtually captive market: trains are very good at moving commuters into and out of large cities; congestion on the roads means that many people have no real alternative.
很多铁路企业占据着垄断市场:乘火车进出一些大的城市方便快捷;而且公路上的拥堵也让人别无选择。
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Shoup's solution to reducing congestion due to cruising — which he chronicles in his book The High Cost of Free Parking — begins by raising the cost of street parking to market value.