When canals can be a feature to be one’s guide for exploring the city in a new way, why not look at all (former) waterways? I covered the largest and most important of them, the well known Dommel already. But anyone familiar with Eindhoven knows that more is available.
High voltage power lines may be a somewhat oddball feature to guide city exploration, canals are certainly less so. They are natural corridors and used as such by city planners.