Nahashon Mutjoni, several books and articles address the topic of your question. You could review the following:

• Hall, P., & Tewdwr-Jones, M. (2019). Urban and regional planning. Routledge.
• Kaplan, D., & Holloway, S. (2024). Urban geography. John Wiley & Sons.

Geography plays a crucial role in urban planning and regional development projects by selecting suitable locations, managing natural resources, interacting with the environment, developing infrastructure, and distributing populations. These factors contribute to the sustainability of projects, enhance economic efficiency, reduce environmental risks, and improve the quality of life for local communities.

Geography is also plays an important role in mapping crime and identifying possible areas that may require intervention from urban planners: https://www.sciencedirect.com/science/article/abs/pii/B9780081022955102483.

Geography can also pay a huge role in the mitigation and prevention of natural hazards becoming disasters or calamities: from the tracking of identification of hurricanes or similar storm formation depending on the global location (Hurricane Helene and Typhoon Krathon): monitoring volcanic activity and monitoring earthquake activity. This monitoring is used in real time to predict what could happen and allow local and regional governments time to act and save lives.

Geography can be used in the mapping of urban, suburban and rural changes. Advising on where is safe to build or develop.

It is used to map possible influences both negative and positive on areas due to say the development of damns and reservoirs. Providing information on the impacts on the flora and fauna, how it could impact the development of the regions watershed and the impact on agriculture.

Honestly there are many ways geography can affect urban and regional planning. It really depends on what you want to focus on. I could be bias though as Geography is what I studied. If i can be of more help feel free to message me.