Author: ayres

Three Do’s (And Two Definite Don’ts!) to Keep a Roundabout Island Alive And Well

How to Design Roundabout Plantings That Are Healthy all Year Don’t compact the soil. Provide soil that stands up to road salt. Pick plants suited to dry conditions. Plant thick to fight weeds. Water faithfully throughout the first growing season.   The center area of a roundabout can turn into a weedy, underdeveloped island. The… Read More »

Entering a Roundabout and See Flashing Lights Behind You? Keep Calm, and Carry On

It’s 5:30 p.m., and you’re just hitting the road for your commute home. With kids buckled in the back seat and the bag of groceries you just picked up tucked away in the trunk, you’re homeward-bound – and then you see flashing emergency lights in your rearview mirror. And to complicate matters, you’ve just entered… Read More »

Training Flume Helps Engineers Get Their Hands Wet – And Keep Their Roads Dry

How much water can a culvert pass? Which pavement inlets work best? Does a liner change a pipe’s capacity? What problems can arise when there’s just too much water? Federal Highway Administration (FHWA) and Ayres Associates engineers have designed a training tool to help transportation engineers answer these and many more questions about highway drainage… Read More »