Starting Monday, alternate-side-of-the-street parking will be suspended on residential streets in Park Slope until further notice. The parking reprieve is being granted while the city changes all the signage to reflect a big change in the alternate-side parking rules: On street cleaning days, the duration of the “No Parking” times will be cut from three hours to 90 minutes in Park Slope. This also means that until all the new signs are in place –......