next, we have comment from tyler frisby from sf bicycle coalition. >> thank you very much for having me here today. i'm the policy director for the san francisco bicycle coalition. i want to take a moment to say we are very supportive of this document and represents a great deal of work on the mayor's office on disability and other stakeholders and one of it's first in the nation to set up a broad standard when they look at accessibility and biking improvements. we've had difficult conversations and this is the way to set up guidelines and pieces more accessible for people on crutches and people on bikes and wheelchairs. to address the question about people stopping at crosswalks and making sure to yield to pedestrians, we intend to take this document once it's formalized and use it for soik -- cyclist and children and their families. we want to engage these guidelines and we want to understand what these signals and markings mean and have a clear understanding of where we want this to go. we want to make this useful for all of us. thank you. >> thank you. next we have comments from