travel_time_car&quot;</span>)</span></code></pre></div>
<p><code>HamiltonDAs</code> are the Dissemination Areas for Hamilton CMA, which coincide with the Traffic Analysis Zones (TAZ) of the Transportation Tomorrow Survey of 2011. The dataframe <code>trips_by_mode</code> includes the number of trips by mode of transportation by TAZ (equivalently DA), as well as other useful information from the 2011 census for Hamilton CMA. Finally, the dataframe <code>travel_time_car</code> includes the travel distance/time