Last Saturday, I got stuck along with thousands of other Pittsburghers in a terrible traffic jam on Route 28 because the inbound lanes were closed at the 40th Street Bridge. Closing Route 28 might have been necessary, but a little planning by PennDOT would have reduced the traffic jam considerably.
Two examples: 1) When they routed people onto the 40th Street Bridge, they kept the normal Saturday configuration of one lane going into Lawrenceville and two lanes coming toward 28. The one-lane bumper-to-bumper situation on the bridge created a bottleneck that stopped traffic for a couple of miles on Route 28. They could have alleviated much of the bottleneck by implementing the normal inbound rush-hour configuration of two lanes going into Lawrenceville -- especially since traffic coming toward 28 was light (since 28 inbound was closed).
2) When I was approaching the Highland Park Bridge, there was no warning that Route 28 was closed ahead. If there had been, I could have easily crossed the bridge instead of continuing down 28. Instead, the programmable message warned of "delays ahead" -- the same message that appears on that sign every business day. If they had changed this sign to inform motorists of the closure, many more people could have exited.
Bottom line: PennDOT, if you're going to close a road, please take some time to think about how to alleviate the resulting traffic problems!