Combined Dashboards

The following dashboards display the combination of traffic, income, and population data for each county in California between 2013 and 2022. 

The following patterns are evident when observing the line graphs for the aggregation of all counties for all three categories 

2013-2017: it is clear that average population, income, and traffic values grew at similar rates.

2017-2019: there was a trend divergence, as population growth stagnated, income growth continued, and traffic values declined. 

2020: After the start of the COVID-19 pandemic, all three measures experienced a decline, with the decline in average traffic being the most drastic.  This data should be of no surprise as many businesses were closed and shut down the economy, travel was restricted, and people were working from home and not driving to work. Additionally, it appears that fewer people were emigrating to California during this period, and opting for states with a lower cost of living during a strained economy. 

Post-2020: Income growth continues, which could be attributed to the rise of inflation and the raising of federal interest rates. Population decline continues due to a variety of factors that are outlined on the Population Dashboards page.  While both peak hour and daily traffic sharply rebound towards pre-COVID levels in 2021.  Traffic values dropped to 2020 levels.  While it is uncertain why the average AADT dropped, and possible explanation for the drop in peak-hour traffic is the spreading of rush hour. Many people's work schedules have become more flexible after the pandemic, and not everyone is on the road after the traditional 5-6 pm rush hour.  Now this peak hour has diffused over the hours from 3 -7 pm as work schedules have changed.