A raised crosswalk on Holland Street?

[serious-noir.livejournal.com]

Just got an email from the city about street closing on Holland Street due to construction (contents below).

Is this "raised crosswalk" like a bridge across Holland Street?? I'm having trouble picturing such a thing. Has anyone seen a city proposal or other documentation online?

On the other hand, I have imagined a sort of "skyway" bridge to connect the bike path from behind the RIX to behind the T station at Holland street. That would be awesome.

This is Carlene Campbell-Hegarty from the City of Somerville, with important information about construction in Davis Square. Weather permitting, on Sunday, August 19th beginning at approximately 2:00 a.m. and continuing through Wednesday, August 22nd, MassDOT will be installing a raised crosswalk on Holland Street at the MBTA station. During this period of time, Buena Vista Parking Lot will remain open. However, no vehicular traffic will be allowed on Holland Street from Winter Street to Dover Street.