This is a good point. In fact, I’m quite familiar with what happens when neighborhoods are laid out that way. I’m from the south side of Chicago and at the turn of the century up through the 1930s, thousands of bungalow houses were built that had a similar configuration with an alley way. Now, those brick houses still stand, but the streets are hugely congested with parked cars in front of the houses. At the time they were built, no one thought that households would have 2-3 cars in many cases, but I can see where this could happen in these neighborhoods.