Figure 5 arranges the data to show capacity impacts by time of day, broken down by 30-minute periods and is stratified by night, day and all-day subgroups.
9% of work zones are active 18+ hours per day
33% of work zones are active primarily at night
67% of work zones are active between 9 and 10 AM
58% of work zones are active primarily during daylight hours
19% of work zones are active between 6 and 7 PM
