Feedback Loops: How Street Signs and Radar Signs Make Communities Safer
Wired Magazine tells the story of a community in California that was having a difficult time getting drivers to slow down in school zones. Even increased police enforcement had only a limited effect. But after installing a series of radar feedback signs, drivers slowed down by an average of 14 percent.
“The signs were curious in a few ways. For one thing, they didn’t tell drivers anything they didn’t already know—there is, after all, a speedometer in every car. If a motorist wanted to know their speed, a glance at the dashboard would do it. For another thing, the signs used radar, which decades earlier had appeared on American roads as a talisman technology, reserved for police officers only. Now Garden Grove had scattered radar sensors along the side of the road like traffic cones. And the Your Speed signs came with no punitive follow-up—no police officer standing by ready to write a ticket. This defied decades of law-enforcement dogma, which held that most people obey speed limits only if they face some clear negative consequence for exceeding them.”
The key was what scientists call a “feedback loop.”
Basically, if you equip people with information about their actions in real-time, they’ll improve their behavior. Tell drivers that they’re speeding, and they’ll usually slow down. For another example — tell drivers that they’re using too much gasoline (via, say, the consumption display in a Toyota Prius), and they’ll actively try to improve their efficiency.
And they work. Again, according to Wired:
“So feedback loops work. Why? Why does putting our own data in front of us somehow compel us to act? In part, it’s that feedback taps into something core to the human experience, even to our biological origins. Like any organism, humans are self-regulating creatures, with a multitude of systems working to achieve homeostasis. Evolution itself, after all, is a feedback loop, albeit one so elongated as to be imperceptible by an individual. Feedback loops are how we learn, whether we call it trial and error or course correction. In so many areas of life, we succeed when we have some sense of where we stand and some evaluation of our progress. Indeed, we tend to crave this sort of information; it’s something we viscerally want to know, good or bad. As Stanford’s Bandura put it, “People are proactive, aspiring organisms.” Feedback taps into those aspirations.”
Here at Brandon Industries, we offer a full line of driver feedback signs that can effectively slow down drivers and make your community’s streets a safer place for families. But the feedback loop principle applies partially to more than just radar feedback signs — even without real-time feedback, any of the street signage systems your community, school, or business park uses to transmit important information can be more effective through careful, repetitious installation.
For example, colorful custom logo signs and custom aluminum signs that display your community’s logo transmit “real-time” information about where the driver is — and remind them that these streets are where kids and families could be playing.
The feedback loop principle just proves how important strategic streetscape planning is for safety in your neighborhood. We’re eager to help neighborhoods build effective, safety-boosting streetscapes.
Schools Out: Time to Play
1. They do more than just measure speeds
