"multiple, obvious flashing warning signs wouldn't be that common."
Unfortunately they are way too common. Did you know there's wild animals living outdoors and they cross roads? 75 miles away a divorced family is having a custody dispute so here's abduction alert #243 for the year as a punishment from one parent to the other? There's a terrorist hiding behind every tree stump? Next month some roadwork is planned although nothing so far has been done other than put up the warning sign and barrels and collect higher traffic ticket fees? Six months ago a long term road work lane closure happened so everyday commuters now completely ignore a giant bright flashing warning that lanes have changed? The bright flashing overhead sign reports that 30 miles away where you aren't even going, there is a traffic jam? This is before I even get started on the billboard advertisements designed to distract you from driving.
If everything's an emergency, then nothing is an emergency. Including, unfortunately, bridge height.
These yellow flashing signs are useless, as you say, but you'd think that drivers are conditioned to obey traffic lights, and most every tunnel in existence - including the one in Sydney - has these red and green lights up top that allows the tunnel crew to block lanes individually. I couldn't tell why truckers see these and still blow through them.
Unfortunately they are way too common. Did you know there's wild animals living outdoors and they cross roads? 75 miles away a divorced family is having a custody dispute so here's abduction alert #243 for the year as a punishment from one parent to the other? There's a terrorist hiding behind every tree stump? Next month some roadwork is planned although nothing so far has been done other than put up the warning sign and barrels and collect higher traffic ticket fees? Six months ago a long term road work lane closure happened so everyday commuters now completely ignore a giant bright flashing warning that lanes have changed? The bright flashing overhead sign reports that 30 miles away where you aren't even going, there is a traffic jam? This is before I even get started on the billboard advertisements designed to distract you from driving.
If everything's an emergency, then nothing is an emergency. Including, unfortunately, bridge height.