How GIS mapping makes for smarter planning

How GIS mapping makes for smarter planning

Cartography has always been about helping people get where they need to go. But thanks to GIS (Geographic Information Systems) technology and powerful analytical tools, modern maps do a lot more than just point the way. They combine detailed data and technology to reveal patterns, impacts, and possibilities that static maps simply can’t show.

At its core, cartography and GIS involve three key parts: cartography itself, which creates both printed and interactive maps; GIS, which provides the software and tools to build those maps; and the data, the essential fuel that brings everything to life. Without accurate data, even the best tools can’t deliver useful results.

How GIS tools work

GIS tools cover everything from basic data capture to advanced data manipulation and analysis. These tools allow users to take raw geographical data and turn it into meaningful information.

Some key GIS analyst functions include:

• Combining multiple sets of data into a single feature, or identifying where different data layers overlap
• Measuring distances between points or other features on the map
• Creating a ‘line of sight’ from a certain elevated point to see what parts of the landscape are visible
• Producing a ‘viewshed’, which shows all the areas that can be seen from a specific location at a given height and distance

Another important tool is the creation of buffers around features. Buffers mark out a specific zone around a point, line, or area, showing the potential influence or impact that feature might have. For example, a buffer could indicate how far noise from a busy road reaches into surrounding neighbourhoods, or the area affected by a proposed development.

Buffers and viewsheds are often supported by surface models. These are created using contour lines that build a smooth representation of the land’s surface. Colours usually show height differences, with lower areas in light colours and higher ground in darker shades. This instantly gives the map user a sense of the terrain’s ups and downs, something a flat map simply can’t do.

Why these tools matter

GIS tools make maps far more informative and useful than traditional maps. They provide data that can identify how one feature may affect another, or how far an impact might spread. For example, maps created with GIS can show potential flood zones on coastal land, or how new infrastructure might affect local ecosystems.

This level of detail is crucial for local governments and planners, especially in regional Western Australia, where land use decisions have to balance community needs, environmental protection, and economic development. By using GIS, planners can create strategies that are both practical and based on solid evidence.

Accuracy matters

Even the best tools can’t compensate for poor data or mistakes in presentation. Before GPS software became the norm, I drove around Ireland using a road atlas published by a German company. While the distances in the atlas were correct in kilometres, Ireland uses miles. This mismatch caused confusion and longer travel times than expected. It was a small but telling example of how crucial it is to have accurate data presented in the right way.

At Land Insights, we understand that accurate and clear information is essential. We make sure the data we work with is reliable and that our maps display it correctly. This helps councils and agencies make well-informed decisions that reflect the real conditions on the ground.

Supporting regional planning with GIS

Local governments in regional WA face unique challenges. These include dealing with changing populations, planning sustainable land use, and managing environmental concerns, all on tight budgets. GIS tools help by providing a clear picture of the land and how different factors interact.

Land Insights specialises in combining cartographic skills, GIS technology, and quality data to deliver maps and planning advice that are practical and easy to understand. This helps communities plan for the future while respecting environment and local priorities.

If you want to find out more about how cartography and GIS can support your next planning project, please get in touch.