Researchers found that tiny fluctuations in car-road density cause a chain reaction leading to traffic jams. A critical density threshold exists, and once exceeded, gentle braking causes a standstill.
A University of Wisconsin-Madison researcher used historic aerial photographs to track road density and found that invasive species can colonize roads within up to 60 years. Forest managers can employ proactive monitoring and quick action to mitigate the impact of roads on native plant life.
The Romans developed various pragmatic solutions to water problems, such as using wells in Ostia and small elevations in Pompeii to guide rainwater. However, their sewage systems were often simple and not as advanced as modern standards.
Researchers at the University of Cincinnati are testing a new portable computer monitoring system to predict changes in traffic flow and traffic delays in real time. The goal is to warn drivers about long delays before they reach a construction zone, giving them time to exit an interstate and use an alternate route.