• Rural to urban migration continues to be popular, which puts pressure on public infrastructure.
  • A new report shows there are more sustainable and efficient ways to maintain public infrastructure.
  • Digital data could be a key player in facilitating these new ways, the reports explains.

As people move from rural to urban areas, expanding cities are pressed to consider new ways of managing labor-intensive public works, such as building and maintaining roads, drains, streetlights, and solid waste-management services. How can local governments manage sprawling infrastructure, when the need to boost resilience to natural hazards and climate change demands collecting and maintaining detailed, up-to-date geographic data about critical infrastructure?

In Digital Works for Urban Resilience: Supporting African Youth, our team reports on ways that cities can use digital technology to maintain public works in more efficient, cost-effective, and gender-inclusive ways. Using digital data could also help to close the digital divide, especially for youth. Funded by the Global Facility for Disaster Reduction and Recovery, the report shows how 7 pilot projects used digital technology to test a new data- and technology-driven workflow to modernize public works.

The pilot projects recruited local workers in different ways—through universities, around neighborhoods, and via social media—all detailed in the report. Together, the pilots hired 1,300 young people, who were paid and complied with COVID-19 social-distancing restrictions. These local youths not only collectively contributed to more than 2.8 million digital data-collection tasks; they also learned valuable digital skills.

Cities

What is the World Economic Forum doing to promote sustainable urban development?

Cities are responsible for 75% of global greenhouse gas emissions and are home to over half of the world’s population—a number that will grow to two-thirds by 2050. By going greener, cities could contribute more than half of the emissions cuts needed to keep global warming to less than 2°c, which would be in line with the Paris Agreement.

To achieve net-zero urban emissions by 2050, the World Economic Forum is partnering with other stakeholders to drive various initiatives to promote sustainable urban development. Here are just a few:

To learn more about our initiatives to promote zero-carbon cities and to see how you can be part of our efforts to facilitate urban transformation, reach out to us here.

A person using a smartphone to work
Workers with Spatial Collective validate and assure quality of street-level images, which help automatically detect street-level infrastructure through machine-learning algorithms.
Image: World Bank Blogs

The project team broke down data requests into many smaller tasks or microtasks that we assigned to the young workers. For example, one assignment required a local youth to go into the neighborhood to collect information by taking pictures of bus stops, public toilets, or markets. Others could complete their work from home; they performed tasks like identifying solid-waste piles from drone imagery, or double-checking artificial intelligence algorithms to ensure they had correctly identified local buildings from street-view imagery.

The data informed investments and policy decisions in areas such as public health, to identify COVID-19 hotspots; solid waste management, for improving drainage to prevent flooding; and climate resilient urban development, such as monitoring the growth of tree canopies.

Four principles guided the pilots:

1. Collect high-quality, open, locally relevant datasets.

Most of the datasets generated during these pilots are considered digital public goods for the participating cities and countries: Nairobi, Kenya; Bamako, Mali; Freetown, Sierra Leone; and Dar es Salaam, Tanzania. Where appropriate, the data will be made available to the public. Beyond helping with immediate decision-making, the data—as digital public goods—could also be used in longer-term economic and development initiatives.

A satellite image of an area
Another digital public good created during the pilots is a map of where solid waste is accumulating in Bamako.
Image: World Bank Blogs

2. Create safe, flexible, and remote income opportunities.

For example, the pilot in Freetown, Sierra Leone focused on identifying trees in urban areas to monitor the changing canopy; while another, in Bamako, Mali, identified places where trash was accumulating to improve the design of solid waste-management services. The remote, asynchronous nature of both work and training allows people, especially women, to participate at times that work around their family schedules or other commitments.

A woman working from her smartphone device
A young woman in Bamako is learning about solid waste before validating its presence on an aerial image.
Image: World Bank Blogs

3. Combine short-term income opportunities and learning opportunities.

While most training materials focused on the technical side of the engagement, people also participated in training relevant to their specific data-collection effort—whether the goal was to improve waste collection, to enhance urban resilience, or something else. Training was quite flexible; some pilots offered in-app tutorials, while others provided live webinars and socially distanced in-person training.

Worker with Spatial Collective validating street-level images.
The data collection allowed individuals to have short term employment
Image: World Bank Blogs

4. Find workflows that can scale efficiently.

Microtask workflows are easy and quick to replicate. The pilots enabled the team to validate hundreds of thousands of data points and to collect many hundreds more. These workflows could transform data-collection for urban-planning and maintenance initiatives, such as a comprehensive inventory of transportation-network infrastructure (traffic lights, traffic signage, and the like) or public works infrastructure (manholes, streetlights, fire hydrants, and the like).

Students of the Resilience Academy in Tanzania participate in training for a pilot study on remote canopy-detection in Freetown and Dar es Salaam.
Pilots were able to advance their digital skills
Image: World Bank Blogs

Going forward

It is possible to combine inexpensive, commonplace digital tools with local knowledge to collect much-needed geospatial data, while providing short-term employment and skill-building opportunities to vulnerable populations. Engagements can begin with entry-level, low-complexity tasks. As workers develop increased proficiency and experience, they can be promoted to more challenging, better paid opportunities. The 7 pilots show that expanding public works programs to include micro-tasking can also provide flexible income opportunities that tend to attract youth, women, and persons with disabilities.