Four practical applications of spatial analysis, and what we have learned from training urban professionals around the world.
What can a map reveal that a spreadsheet or written report might miss?
It can show where environmental risks overlap, which communities are disconnected from essential services, where an intervention could have the greatest impact and how different urban systems relate to one another.
Since we started running more programmes and training sessions on urban data, GIS and spatial analysis, we have noticed a recurring pattern.
Many urban professionals know that GIS could be useful in their work, but still see it primarily as complicated software that takes years to master. Others associate it with producing maps at the end of a project, rather than helping shape the research, planning and design process itself.
But learning which buttons to press is only one part of working with GIS.
The more important skill is knowing which questions spatial analysis can help you answer, what data you need and how to turn the results into something that colleagues, clients and decision-makers can understand.
Across our open courses and organisational training programmes, we see urban professionals returning to four broad types of questions. Here is what they look like in practice.
1. Who can reach what, and who is being left out?
A destination may look close on a map but still be difficult to reach because of disconnected streets, limited public transport, physical barriers or unsafe routes.
Accessibility and network analysis can help investigate:
- How many people can reach a school, hospital, park or public transport stop within a certain time?
- Which neighbourhoods have the poorest access to essential services?
- Where does the existing network create gaps or barriers?
- How would a new route or facility change accessibility?
This allows planners and mobility professionals to move beyond straight-line distance and examine how people actually experience the city.
2. Where do environmental risks overlap?
Flooding, extreme heat and other environmental pressures rarely affect every part of a city equally.
GIS makes it possible to combine information about flood exposure, surface temperature, vegetation, slope and land cover with the location of buildings, infrastructure and communities.
The result is not simply a map of where a risk exists. It can help reveal which people and assets are exposed, where several vulnerabilities overlap and which locations may require the most urgent attention.
3. Which places should be prioritised?
Many urban decisions involve balancing multiple criteria.
A potential development site might have good transport access but serious environmental constraints. A corridor may serve a large population while lacking public facilities or safe walking connections.
GIS allows you to bring these factors together, assign different levels of importance and compare locations systematically. This makes the assumptions behind a decision more visible and helps teams discuss priorities using shared evidence.
4. What could change after an intervention?
Spatial analysis can also help explore the potential effects of a proposed project.
You might examine how a new transport connection would affect access, whether a proposed facility would fill an existing service gap or which communities would benefit from an investment in public space.
GIS cannot make the decision for you, but it can make the consequences, trade-offs and unanswered questions much clearer.
And yes, QGIS can make maps beautiful
A map can be technically correct and still fail to communicate its message.
Good cartography is not simply decoration. Colour, visual hierarchy, labels and layout determine whether someone can quickly understand what a map shows and why it matters.
QGIS gives you extensive control over each of these elements. You can create maps that are analytically rigorous, easy to read and polished enough to use in reports, presentations, portfolios and client work.
The objective is not only to produce an accurate map. It is to create one that helps people see and understand the story within the data.
Before opening QGIS, start with the question
A useful spatial analysis rarely begins with downloading as much data as possible.
Before opening the software, try answering four questions:
- What decision or discussion should this analysis support?
- Which people, places or systems are affected?
- What do you need to compare, measure or identify?
- Which data would provide meaningful evidence?
This simple exercise helps prevent a common problem: producing an impressive map without a clear purpose.
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Learn to build these analyses yourself
These principles shape our six-week GIS and Spatial Analysis for Urban Practitioners course, developed by All Things Urban and The GeoSpatial Hub.
The programme is designed specifically for people working with cities, including planners, urban designers, architects, mobility professionals, researchers, environmental specialists and policymakers.
Rather than learning GIS through generic exercises, participants work with real city data and practical urban questions.
During the course, you will learn how to:
- Navigate QGIS confidently
- Find, clean and organise spatial data
- Conduct spatial and network analysis
- Combine datasets to investigate urban challenges
- Create clear and professional maps
- Use AI to support parts of your GIS workflow
- Develop a portfolio project based on a real urban question
The programme is fully online and designed to fit alongside a full-time job, requiring up to four hours per week. It includes structured lessons, practical exercises, live sessions and recordings.
QGIS is free and open source, and no coding or previous GIS experience is required.
More than 400 urban professionals from over 45 countries have already completed the programme, and 96% of graduates recommend it.
Participants have joined us from municipalities, planning and architecture practices, universities, research organisations, NGOs and international consultancies.
Join the next cohort
The next cohort begins on 28 September, and we are now filling the final seats.
Enrol by 14 September to receive 10% off all learning plans.
Students and recent graduates can apply for a 20% discount, with only five student seats remaining. Discounts cannot be combined.
Explore the programme and enrol
For teams of three or more, we also offer group discounts and customised training programmes. Contact us at geospatial@allthingsurban.net.
Whether you join the upcoming cohort or continue exploring GIS independently, we hope these examples encourage you to approach urban questions spatially.
Start with one real question that matters to your work, consider which data could help you understand it and build from there. A useful map is not simply a finished visual. It is a tool for thinking, communicating and making better-informed decisions.