The City of Austin completed an environmental analysis to understand the potential impacts of proposed mobility, safety and connectivity improvements for the South Lamar Boulevard corridor:
My initial thoughts I submitted to the city “Overall I am excited for these improvements and am supportive of all the details that have been shown. It may not be feasible but aligning the Mary/ Heather intersection on the east side of Lamar (obtaining ROW where the ATM is) would help visibility and functionality. Also I would like to see less curb cuts and median cuts along the corridor but I know that may not be possible.”
They are proposing a traffic light at Evergreen / Collier and South Lamar. In addition to your suggestions, I think this will do wonders to help the Mary / Hether situation. I would also love to see that as a bike corridor connecting Bouldin and Zilker. There was also talk - previously - of a pedestrian crossing at Gibson over the rail road tracks, but I didn’t see that mentioned here. May be a different mobility project.