High-beam rules are pretty similar throughout the US. In most states, the distance you need to dim your high beams when an oncoming vehicle is approaching is 500 feet (152 meters). When you’re behind a vehicle, this is reduced to 200 to 300 feet (61-91 m). //

Mungus the Unhyphenated Ars Tribunus Militum
9y
1,899
For Europe, at least, it's a shame that lighting regulations pushed aside selective yellow as used primarily in France. The lighting color actually makes a huge difference in reducing dazzle and glare, especially in wet conditions. It also provides excellent contrast in the range that human vison needs to distinguish objects at night,

It seems counterintuitive that light shifted toward yellow works better than brilliant blue-white, but it does. It's due (as in the name selective yellow) to how it's filtered for specific wavelengths that compensate by improving visibility where human vison at night is weaker, and limiting light wavelengths that tend to appear as overpowering glare. Essentially, it can be more effective at lower outputs, and less blinding when dialed-up to higher outputs. It also doesn't adversely affect the driver's night vision for the area beyond the cutoff as badly. But it seems subjectively "dim" at first look. You have to drive behind a set of selective yellow lamps to get the real effect.

Now that we have LEDs that can be engineered with phosphors and filters to emit virtually any spectrum we want (instead of having to build bulbs or headlight lenses which contained large amounts of highly toxic chromium) it seems just lazy that we've gone for automotive lighting that emits in really the worst spectral range for working in harmony with night vision, when we have technology that probably can revisit and improve on an older and more useful concept.

The best state to drive in? Tennessee. I haven't driven much in Tennessee, mostly just passing through on my way to other places, so I won't offer any speculation there. The top five best states to drive in are rounded out by Ohio, Pennsylvania, Florida, and Georgia.

The five worst states? The states that you, as a driver, want to avoid? Hawaii (the worst), Oregon, New Mexico, Wyoming, and Alaska.

Alaska? Seriously? //

And don't get me started on Saudi Arabia, where the locals pass on the highway by straddling the center line, flashing their lights, and honking their horns - until they find themselves facing a massive, five-ton, U.S. Army truck with a huge winch full of 3/4" steel cable on the front. I never saw a speed limit sign in that country, but one local assured me that "there is a speed limit, but nobody makes a car that will reach it." //

anon-c0q4
5 hours ago
This poll must be showing which states are the most honest about their driving. Having lived and worked in most states, Wyoming is one that has the best drivers, Colorado, (DC area), Massachusetts to Maryland with the worse. //

anon-89ic
8 hours ago
This is crap. Wyoming and Wisconsin are the best states to drive in in America, bar none. The worst by far is the Bray State. I've been in every state in the Lower 48, and I've rented a car in every state, and this list is nonsense.

Two-Lane Roadways

If a school bus stops on a two lane road and the red flashing lights are activated and the stop arm is extended, all motorists MUST stop.

Multi-Lane Roadways with NO Barrier between Lanes

When a school bus stops on a multi-lane roadway without a barrier and the red flashing lights are activated and the stop arm is extended, all motorists MUST stop.

Multi-Lane Roadway with a Grassy and/or Concrete Barrier

When a school bus stops and the red flashing lights are activated and the stop arm is extended, only vehicles behind the bus MUST stop. Vehicles that are approaching from the opposite side are NOT required to stop.

Whether you're on a straight or curved road, you have a much higher chance of recovering from hydroplaning if you stay calm and make the right moves. At the first sign of hydroplaning, let off the throttle and attempt to steer in the direction you want to travel—doing so very gently. Abrupt, herky-jerky steering movements can induce a skid, as can slamming on the brakes. Gentle brake application while steering is fine on cars equipped with anti-lock brakes (ABS), which nearly all cars made in the past 20 years are equipped with. Be smooth and consistent with the brake pedal. If gentle steering inputs have no effect, don't keep adding steering angle. Wait for the front tires to bite; trust us, you'll feel it. All of this happens in seconds, so any panic maneuver could send you spinning.

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