I'm all for public transportation and LA used to have the best in the world 80 years ago. But, a large city as large as LA is never really going to be completely walkable unless everyone always moves close to their job. That would mean moving away from friends and family because of a job change rather than just commuting a little further. I suspect most people would chose to stay near their friends and family rather than move closer to their job.
You can compare Tokyo which is large like LA but which has excellent mass transit and yet the average commute is 80 minutes each way. Why? People can't or won't uproot their families for new jobs. Also housing close to a job is probably also often either too expensive (downtown) or undesirable (industrial area).
I'm all for public transportation and LA used to have the best in the world 80 years ago. But, a large city as large as LA is never really going to be completely walkable unless everyone always moves close to their job. That would mean moving away from friends and family because of a job change rather than just commuting a little further. I suspect most people would chose to stay near their friends and family rather than move closer to their job.
You can compare Tokyo which is large like LA but which has excellent mass transit and yet the average commute is 80 minutes each way. Why? People can't or won't uproot their families for new jobs. Also housing close to a job is probably also often either too expensive (downtown) or undesirable (industrial area).