Case Studies
Sharing practical experiences.
Here you’ll find easy-to-read case studies of real-life projects and experiences from around the world to help you better plan, build and manage ecologically sustainable linear infrastructure. Case studies are written by practitioners working on road, rail, powerline and other linear infrastructure projects and showcase what worked, what failed and lessons learnt.
Case studies are listed chronologically according to when they were published here. To find information on a specific topic, please use the SEARCH function and search by keywords, including topic, species, location and author.
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Reframing Fish Passage: From Single Metrics to Structured Complexity
New research indicates that traditional fish passage metrics are oversimplified and insufficient, arguing for a shift toward structured heterogeneity in design to better mimic natural, complex flow fields. This modern approach uses roughness elements to create varied fast and slow water paths, allowing fish to exploit low-velocity refuges and organized vortex structures for energy-efficient upstream migration.