Construction season seems to be peaking with a lot of changes underway on the streets. Here’s a sample of what readers have posted to the Streetsblog Flickr pool and sent to our tips account during the past week, starting with some scenes from Union Square’s public space makeover and the extension of Broadway’s “green ribbon.”

The seating on the north side of 17th Street was a hit the moment it went in last week…

…and so was the seating around the corner on Broadway.

The extension of the Eighth Avenue protected bike lane from 23rd Street to 34th Street is in progress.

NYC DOT’s expansion of slow-speed zones is calming traffic on 123rd Street between Amsterdam and Morningside, a block that’s home to four schools. Traffic volume is low here, reports reader Glenn McAnanama, tempting drivers to speed on a street where children are constantly crossing. DOT put in two speed humps on the block, accompanied by these 15 mph signs.

The same block is home to this cave-like parking structure for teachers and staff at PS 36, Glenn tells us.