Complex sentence: Additional shuttle bus, ferry, and subway service would be provided; the M14 and M23 buses might be converted to Select Bus Service to handle the resulting passenger load; dedicated bus lanes would be placed on crosstown corridors in Manhattan.
Split into simpler sentences: Additional shuttle bus, ferry, and subway service would be provided. In addition, the M14 and M23 buses might be converted to Select Bus Service to handle the resulting passenger load; dedicated bus lanes would be placed on crosstown corridors in Manhattan.