Clinical trial NCT03741582: Urban Transformations and Health: the Case of TransMiCable in Bogotá
Official title: Urban Transformations and Health: the Case of TransMiCable in Bogotá
Study type: OBSERVATIONAL
Overall status: ACTIVE_NOT_RECRUITING
Conditions: Quality of Life
Social Capital
Transportation
Physical Activity
Homicide
Respiratory Disease
Keywords: Transportation
Urban Health
Quality of Life
Social Capital
Crime
Respiratory Diseases
Lead sponsor: University of Los Andes, Columbia
Sponsor class: OTHER
Collaborators: name: Wellcome Trust
name: Drexel University
name: Fundación Santa Fe de Bogota
First posted: 2018-11-15
Enrollment: 2052
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Every participant of the study is an adult that lives on one of the 225 blocks selected from each buffer with probability proportional to the size of the catchment areas' population. For selecting the participant, 4 or 5 households were systematically selected on each block. The families of each household were selected with a random numbers chart, as well as the participant listing every adult by age.

Brief summary: Cable cars are means of transportation with urban mobility benefits for vulnerable populations living in areas with geographic barriers. Despite their popularity, there is no evidence of cable cars' potential health effects. TransMicable, located in "Ciudad Bolivar", Bogota, Colombia will open in late-2018 presenting an unprecedented opportunity to assess the health impacts and accessibility improvements. The investigators aim is to assess the effect of theTransMiCable implementation on social determinants of health (social capital, employment, crime, transport, microenvironment pollution, built environment), healthy behaviors (leisure and transport physical activity) and health outcomes (health-related quality of life, respiratory diseases and homicides).

The investigators are conducting a controlled quasi-experimental pre-post study with six elements: 1) The co-construction of a conceptual framework using a causal loop diagram with stakeholders of multiple sectors. 2) A (non-intervention - intervention) quantitative study of social capital, community participation, travel time, costs, demand, modal choice, physical activity and health-related quality of life using repeated in-person questionnaire, anthropometric measurements and physical activity using accelerometers. 3) A transport trajectory study in a subsample of the population of the quantitative study using a mobile application to track journeys. 4) A subsample of environment evaluations 5) Our Voice in the Neighborhood qualitative study to address the potential change in perceptions of the neighborhood using Citizen Science "by the people" involving the community and local public and private stakeholders and 6) A Secondary-data analysis of Crime and Respiratory diseases using time trends from official surveillance systems for homicides and acute respiratory diseases.

The investigators' main hypothesis are 1) There is an increase in the Social Capital and Quality of life indicators in the TransMicable target area after the implementation when compared to other neighborhoods without TransMiCable. 2) There is a significant decrease in travel time and cost for trips to downtown Bogota and an increase in the total number of trips for residents of "Ciudad Bolivar" neighborhoods with TransMiCable, after the implementation of TransMiCable when compared to other neighborhoods without TransMiCable in the locality of "San Cristobal". 3) There is a significant shift in modal choice for the resident of "Ciudad Bolivar" from informal transport service to the TransMiCable system with a positive association in terms of proximity to TransMiCable stations. 4) Most TransMiCable users are former informal bus transit and formal bus feeder users. While most users will access TransMiCable by walking, some living further from stations will take informal transport services to access to TransMiCable. 5) There is a reduction in the microenvironment pollution around the target area of TransMiCable when compared to the control area. 6) There is a change in the perception of the neighborhood for residents of the target area of TransMiCable when compared to the control area. 7) There is a significant decrease in the prevalence of homicides and acute respiratory diseases in the area of the TransMiCable implementation in comparison to the control area without TransMiCable. The results of this study will allow us to understand baseline dynamics, while, in the long-term, allowing us to assess the changes in travel and health behaviors.


Eligibility criteria: Inclusion Criteria:

* Has minimum 18 years old
* Has lived over the past 2 years in the study area
* Would not move from the study area in the next 2 years
* Has not any kind of cognitive problem

Exclusion Criteria:

* Has less than 18 years old
* Has not lived over the past 2 years in the study area
* Has plans to move from the study area in the next 2 years
* Has any kind of cognitive problem

Primary outcomes:
measure: Basic activity monitoring
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Trajectory measurement
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Longitudinal qualitative interviews
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Questionnaire survey Transport section
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Questionnaire survey IPAQ section
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Questionnaire survey Quality of life section
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Questionnaire survey Social capital section
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Questionnaire survey Respiratory diseases section
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Questionnaire survey loneliness section
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Questionnaire survey Use of free time section
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Environment evaluations SOPARC
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Environment evaluations Air pollution
timeFrame: First measurement: February to December 2018, Second measurement: July 2019 to March 2020, Third measurement: March to Sep 2021, Fourth measurement: August 2022 to May 2023
measure: Crime measurements
timeFrame: This measurements are performed by different official systems and were collected by the end of each year.
measure: Respiratory diseases measurements
timeFrame: This measurements are performed by different official systems and were collected by the end of each year.
Secondary outcomes:
Other outcomes:
Locations:
city: Bogotá
country: Colombia
facility: Universidad de los Andes
Study officials:
affiliation: Universidad de los Andes, Colombia
name: Olga L Sarmiento
role: PRINCIPAL_INVESTIGATOR
References: