Jarrett Walker Jarrett Walker is a consulting transit planner, helping to design transit networks and policies for a huge range of communities. He is the author of the Human Transit Blog. (humantransit.org). Recent Posts Opinion: The Bus Driver Shortage is an Emergency By Jarrett Walker | Dec 15, 2021 | No Comments Many US transit agencies are looking at devastating service cuts due to a shortage of bus drivers. And there's something simple but powerful that sustainable transportation advocates can do about it. Midday Transit Demand Staying Relatively High During COVID By Jarrett Walker | May 29, 2020 | No Comments Covid-19 has understandably caused steep declines in public transit demand, but the pattern of that fall is important. Peak (rush hour) demand has fallen much more than all-day demand, mirroring a change in travel demand overall.