- Option A: The existing street grid is retained and an additional cross street added in parcel 20 to reinforce the traditional block pattern. The one way traffic pattern and small blocks allow drivers to circulate easily.
- Option B: Herald Street becomes a wide two-way boulevard. Marginal Street becomes a local street terminated by a park on parcel nineteen. West-bound traffic is diverted from Marginal to a new Herald Street Boulevard to reach the turnpike on-ramp.
- Option C: Marginal Street is shifted south out over the air rights parcels creating narrow development parcels to the south and expanding existing parcels to the north.
Review of these options included a discussion of advantages and disadvantages, from traffic operations (pedestrian and vehicular), community, and urban design perspectives. The extension of Herald Street from Columbus Avenue/Claredon Street to Tremont Street was also considered by the TWG.
The TWGs concluded that option A provided the most desirable street layout, primarily because of its functionality with respect to accommodating both pedestrian and auto circulation, ease of implementation (it exists now), and expected lower cost. The Chinatown neighborhood supports Option A and believes that the Herald Street extension is not something that will serve their neighborhood. The TWG and the SDSC do not recommend the Herald Street extension or Boulevard concepts. However, the guidelines have been structured to allow any of the three roadway options to be considered in the future, should public or private funding become available.