Better bike routes&#x2F;friendlier designs are a good thing, but they&#x27;re still space inefficient compared to rail systems or even just plain buses. This is a favorite gif of mine to show the difference: <a href="http:&#x2F;&#x2F;i.imgur.com&#x2F;kw8DaST.gif" rel="nofollow">http:&#x2F;&#x2F;i.imgur.com&#x2F;kw8DaST.gif</a><p>In an ideal situation, we would have good subway systems alongside more promotion of bike use. I personally have a couple disabilities making bike use difficult :( I would kill to have a Seoul Subway-esque system in SF (the best system I&#x27;ve experienced firsthand, I&#x27;m sure there are better but it&#x27;s among the best&#x2F;biggest).