Density matters. How many people need that road, i.e. how many people live on these 0.3 miles of road? It's not a through route, so it does not benefit much mo

Density matters. How many people need that road, i.e. how many people live on these 0.3 miles of road? It's not a through route, so it does not benefit much more people than that. How many people live on 0.3 miles of city streets lined with multi-story buildings? That makes all the difference in how the math works out.