Rumor has it that the city will be installing a sign here at some point, as it has on State Street. However, this may not happen until next year unless more people contact elected officials and the City (see above) about the problem. In terms of enforcement, the best bet if you are a current member of the Yale community is to copy the Yale Police, and CC: your deans or administrators. This is a major issue for the Yale community and if more people speak up, additional enforcement, better crosswalk designs and/or signage may be more likely to follow. See http://www.yaledailynews.com/articles/view/25009 for an op-ed on the issue, which was passed unanimously by the Yale Daily News editorial board.