Passage Summary: Even though we build bigger roads to fix traffic jams, the jams actually get worse after the roads are finished.

Reasoning: The stimulus provides data showing that highway expansions intended to reduce traffic congestion actually result in increased delays.

Analysis: The conflict here is between the intent of highway expansion (less traffic) and the actual outcome (more traffic). We need a factor that explains why more road capacity leads to more congestion. Look for an answer that suggests the new roads attract even more drivers than they can handle, perhaps by encouraging people who previously avoided the area to start driving there. This is a classic case of 'induced demand' in urban planning.