The housing crisis currently facing San Mateo County and the region is often positioned as a series of alarming numbers. Between 2010 and 2014, for example, the county welcomed 54,600 new jobs but developers built a mere 2,100 housing units. The median household income in the county is $108,088, but affording a median-priced home requires $205,965. A county renter needs to earn at least $88,903 to afford an average two-bedroom apartment. And that's why ... 62 percent of existing jobs in the county are filled by non-county residents, which means heavier congestion on our roadways and a greater impact on the longevity of this vital infrastructure. Housing and transportation are two sides of the same coin.