I want to know the answer to the following question:
What is mainly used for transportation in Seattle?
All the background I'm provided with is that "The main mode of transportation, however, relies on Seattle's streets, which are laid out in a cardinal directions grid pattern, except in the central business district where early city leaders Arthur Denny and Carson Boren insisted on orienting their plats relative to the shoreline rather than to true North.". Is that enough to answer the question?
Answer: yes