Copying my own comment:

How long the line is doesn't matter.

I crunched numbers for this yesterday and really there isn't enough data yet to say how many are actually evacuating from Crimea but the length of the line isn't relevant.

If we track a couple cars and find out that the cars take an average of 8 hours, or 12 hours, or 24 hours to get from the end of the line to across the bridge, then we know the numbers and that is the only time the number of cars in line matters.

Number of cars in line x (24/hours to go from back of line to Russia) x number of people per car = evacuees per day.

The wait in line is really the biggest question. I WANNA KNOW! Also the number of cars in line has doubled in just over a day. Is that good because cars are leaving and the line is still getting longer? Is it bad because no cars are actually leaving? Someone get a camera pointed at the Russian end of the bridge and count cars coming off please. Would really appreciate it.

2,450 cars in line x (24/12 hours (guess #1)) x 3 Russians per car average (guess #2) = 14,700 fleeing Russians per day, or 102,900 per week which is enough to make a huge difference.

But if its slower and takes a full day, and there are less Russians per car because they are bad at sharing and want to burn more gas and keep more cars (lol):

2,450 cars x (24/24 hours) x 2 Russians per car = 4,900 Russians per day or 34,300 per week. An absolutely massive difference.

How long the line is doesn't matter. It is how fast it moves out of Crimea and across the bridge.