4 ms·
The only two places I've ever lived (Philadelphia are and San Francisco) both have this machine so I assumed it was extremely common. Only realized from the
by habosa 9y ago
The only two places I've ever lived (Philadelphia are and San Francisco) both have this machine so I assumed it was extremely common. Only realized from these comments that it's not.
- closeparen 9y agoChicago just has permanent "reversibles" (groups of a few lanes protected by barriers) down the middle of its expressways with remotely-operated signs and gates to control their direction. Must be a higher upfront cost, but less fuss than actually moving the entire barrier every time you want to switch directions.