Bosa. In AMBA, the drop in trip generation was greater in the northern and coastal districts of CABA as well as in the coastal municipalities of Vicente López and San Isidro.

**_Figure 4:_** _Change in number of trips per person per day (trip generation rates) on weekdays in October 2020 vs. 2019_

<!-- Start of picture text --> a. Bogota b. AMBA<br>3 3.0<br>2019 2020<br>2.5 2.5<br>-15.4% -7.6% -16.7% -7.6% -25.3% -14.4% -30.5% -15.7%<br>2 -1.6% 2.0<br>-1.7% -25.1% -26.5%<br>1.5 1.5<br>1 1.0<br>0.5 0.5<br>0 0.0<br>Workday Saturday Sunday Workday Saturday Sunday Workday Saturday Sunday Workday Saturday Sunday<br>Residents of Bogota Residents of Bogota D.C. Residents of AMBA Residents of CABA<br><!-- End of picture text --> Source: Authors based on CDR data The drop in TGRs in 2020 was associated with a significant increase in the share of residents not traveling at all. In Bogota, the share of such residents on weekdays increased from 24 percent in 2019 to 35 percent in 2020. The pandemic reversed the geographic distribution of non-travelers, with peaks in 2020 in the northern localities and markedly increasing differences between localities. In Usaquén, Chapinero and Teusaquillo, the share non-travelers doubled with respect to 2019, likely due to having more possibilities to adopt teleworking and other virtual activities (given the higher socioeconomic level of these localities). In contrast, this share grew by only 25-30 percent in Bosa and Ciudad Bolivar. In AMBA, the share of residents not traveling increased from 19 percent to 32 percent on weekdays.

In both metropolitan areas, the largest declines were recorded in non-home-based trip generation, of 35 percent on weekdays in Bogota and 37 percent in AMBA. These typically include trips associated with recreational and similar purposes. In comparison, home-based trip generation declined only by 8.5 percent in Bogota and 22 percent in AMBA. Within home-based trips, the drop was greater among trips to work and studies specifically (“compulsory mobility”), of 11 percent in Bogota and 17 percent in AMBA, which can be explained by the transition in many businesses and education institutions to remote home/studies or to hybrid modes.

Especially because of the decline in work and study related trips, there was a fall in the number of trips made in both central cities by residents of municipalities of the broader metropolitan areas. The share of trips within Bogotá D.C. made by residents living outside the city fell from 5.4 percent in 2019 weekdays to 4.9 percent in 2020. The linkage of Cundinamarca municipalities to Bogotá has declined during the pandemic, especially among non-bordering municipalities. The decrease was greater on weekdays than on weekends. In the case of weekday trips within CABA, while 12 percent of were made by out-of-city residents in 2019, this share fell to 9 percent in 2020. These declines were more intense among residents of municipalities bordering CABA, and were generally greater in the north of the AMBA than in the south.

Average travel distances declined significantly in 2020. In Bogota, average travel distances decreased by between 5 and 10 percent in the metropolitan area overall and by between 12 and 15 in Bogotá D.C., 10