###### Abstract
\begin{table}
\begin{tabular}{l c c} \hline \hline \multirow{2}{*}{**City (Country)**} & **Population (Number of** & **Percentage of City’s Population** \\  & **Inhabitants) of City (Country)** & **in Relation to Country (\%)** \\ \hline Bogota (Colombia) & 8,770,058 (50,882,884) & 17.24 \\ Buenos Aires (Argentina) & 14,338,718 (45,195,777) & 31.73 \\ Mexico City (Mexico) & 22,381,714 (128,932,753) & 17.36 \\ Santiago (Chile) & 5,688,218 (19,116,209) & 29.76 \\ Lima (Perú) & 9,609,692 (32,971,846) & 29.15 \\ Brasilia (Brazil) & 2,043,811 (212,559,409) & 0.96 \\ Sao Paulo (Brazil) & 21,001,688 (212,559,409) & 9.88 \\ Rio de Janeiro (Brazil) & 10,523,151 (212,559,409) & 4.95 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Population of the cities and countries under study. Figure 1: Cities and countries (in green) that are the subject of this article. to deal with possible cases. For the case of this article, the traffic congestion data published by the Inter-American Development Bank (IDB) [24] were used and for urban transport, the data from the Moovit(r) application were used [33]. In addition, the information from Johns Hopkins Hospital University [34] was used for the number of daily infections by COVID-19. The cities analyzed were Bogota (Colombia), Buenos Aires (Argentina), Mexico City (Mexico), Santiago (Chile), Lima (Peru) and Brasilia, Sao Paulo and Rio de Janeiro, with the latter three in Brazil. These cities are distinguished by having the largest population in the region [35], levels of congestion [36] and number of COVID-19 infections [37]. Among the public urban transport systems, the metro, bus rapid transit (BRT), surface trains, trans, and trolleybuses [38; 39] stand out. Table 2 shows for each of these cities the population density in the metropolitan area, the percentage of modal participation of public urban transport, and the approximate number of daily passengers served in the BRT and subway systems, which are the ones with the highest participation [40; 41]. The metro of the city of Buenos Aires (SUBTE) is one of the first implemented in the region and the fleet of electric BRT of the city of Santiago is the second largest in the world in 2020, which shows that accelerated and giant steps have been taken for the development of public urban transport, in this way, guaranteeing sustainable urban mobility. Additionally, [42], derived from ICSC-CITIES 2020 Congress, shows the impact of the COVID-19 pandemic on traffic congestion in 13 Latin American cities during the first five months of the pandemic declaration. The results are analyzed by grouping the countries into four conglomerates, showing that as social distancing measures are relaxed, there is a recovery of traffic congestion due to the use of private vehicles. In contrast to [42], the present work includes mobility with private vehicles and urban public transport in its different forms, in eight cities. This allows for a broader view by including all means of motorized mobility for a longer period (seven months), allowing us to analyze people's behavior based on their motorized mobility in a time window where a recovery in the number of infections is beginning to be observed.