A commuter campus will not have the high-contact residential issues of the residential campus. Commuter students are more likely to have contact issues from outside jobs, families, etc but those are largely mitigated by wearing masks and distancing. Residential colleges able to offer single rooms with own bathrooms are what is recommended and make a huge difference. However, Students just by going to class are 2 steps away from every other student at the school. Some colleges are taking extensive steps to change hall passing flow, with one-way halls and staircases, distancing in class, online for high contact basic courses that can be taught just as well online, etc. Some turning triple dorm rooms into doubles, doubles into singles. Others are doing nothing.