I agree with Jon Jensen's comment above that a 4-way intersection with one leg that leads to a cul-de-sac is not materially different in terms of connectedness to a 3-way intersection where all three directions lead to through-streets.

Another suggestion - although it would be more difficult to document, I think the credit should be amended to say that the qualifying interections should provide both street and sidewalk connectivity. I think there will be cases discovered where a well-connected street grid does not provide nearly as many sidewalks for pedestrian connections as it provides roads for cars, bicycles and buses.

Is it safe too presume that the true spirit of the credit should include pedestrian access?