In a redevelopment of cities around the world, the shift of the last 10 years has been to make our normal post industrialized cities become 'smart cities'. In America, billions of dollars have been poured in Development projects across the nation (NYC-Hudson Yards, Boston-Seaport/South End, Washington DC-Crystal City, etc), however, the transportation within these cities designing this smart frontier lack adequate expansion of their transportation networks. The biggest issue associated with transportation (Mainly Train/Subway/Light/Heavy Rail, etc) has been the cost associated with expansion projects (ie. 13 Billion Dollars to add a tunnel from South Station to North Station in Boston, MA, USA).
However, last week in Boston, and last year i Sydney I noticed that there certain ways city redevelopment can be furthered more at a less expensive cost. Instead of building multi billion dollar tunnels that span a few miles to service an underground train network, wide lengthey roads can be used for trolley/street car service for a fraction of the cost, while helping the revitalization of areas at street level (And reducing the street car traffic use). It seems like a feasible idea to introduce street cars in out cities from inner suburbs and business districts within a city to demanded point within the city. Although in some cities like NYC, street car/trolley service would not be possible due to the massive traffic flow in manhattan... cities like Boston, DC, LA, Miami, etc, all have particular routes that could handle this type of service. It would bulk up density within the area, reduce car use and help make the given city more attractive on both an environmental and business index.