This legislation updates and amends sections of the Seattle Municipal Code to streamline permitting processes for light rail transit facilities. The updates aim to support efficient construction of future light rail projects, including the West Seattle Link Extension and Ballard Link Extension. Key changes involve creating new development standards, establishing an advisory review process by the Seattle Design Commission for design proposals, clarifying and improving permit processes for specificity and efficiency, and streamlining environmental reviews. Additionally, the legislation defines a tree and vegetation management plan, clarifies construction noise variance, amends bicycle and micro-mobility device parking requirements, and sets specific standards for light rail transit facility signage. These amendments are intended to reduce procedural delays and increase the efficiency of permit reviews for critical transit infrastructure.