In this passage, the word 'immanent' is closest in meaning to:

The word 'immanent' means existing or operating within; inherent. In the passage, 'immanent conflict between the automobile and the city' refers to a conflict that is built into or inherent in the relationship between cars and cities. While 'inevitable' (unavoidable) is sometimes confused with 'immanent', the precise meaning of immanent is 'inherent' — existing within something as a permanent or essential attribute.