Thanks a lot Neil Ayres. I am currently working in ArcGIS 10.3. The data source was aerial imagery, digitized and georeferenced at 1:2500. The generalization toolset has some truly very useful tools.I appreciate the samples of workflows using the model builder. But I'm still not confident about the various parameters used, for instance, the minimum length of roads to be thinned out using thin road network, the simplification tolerance value for simplifying polylines etc. At a different scale, how do I calculate these parameters?
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