OASDI stands for old age, survivor and disability insurance, which is more commonly referred to as Social Security. To pay for these programs, the federal government imposes a tax on earned income that must be withheld by your employer.
According to the December 1985 issue of Popular Mechanics, the Protex Safety Signal Company introduced flashing turn signals in 1920. The first modern turn signal, though, can be attributed to Edgar A. Walz, Jr. who, in 1925, secured a patent for one and tried to market it to major car manufacturers. They just weren't interested, and the patent expired fourteen years later. Meanwhile drivers and inventors kept working on other solutions.
So for safety in the tunnel, it makes sense to turn on lights to make yourself a little more visible. Daytime running lights are useless because they only face front, and hazards would be too distracting with all the cars flashing. Parking lights are just right. These are called daytime running lights. European legislation adopted in 2008 required dedicated daytime running lights (DRL) to be fitted to all new passenger cars and small delivery vans that go through the European whole vehicle type approval process from February 2011.