How can I make a road network with directions to destination (think GTA and forza horizon)

Hi I want to implement a road network. I would like to implement road markings or a mini map that shows the directions to the destinations. I know I can use splines (which I may use to create the roads) but I am not sure how I would create the navigation system from where the player is to the destination. Is it possible to use the nav mesh? The road must have two or more lanes too

Any ideas or different approaches I can take to implement such a system?

I never tried it, but there is this plugin

It is even quite inexpensive.
Maybe it will not match your needs, but it can be at least a good starting point.

There is a playable demo to try before purchase.
And discord server.

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Thank you for that, it’s definitely close to what I am looking for. I do want to implement it myself but that will be a backup

You get also the source code of the plugin with the plugin itself, so you can make your own based on that.