I am trying to get a buffer around highway lines based on the traffic counts upon such highway. For Example, I have highway IH10 with a count of 120,000 cars. Using the proximity buffer tool I am trying to get it to draw a buffer around the highway based on the 120,000 count. I'll need the buffer to change along the highway based on different traffic counts. For example, in one spot there could be 120,000 cars and another there might be 50,000 cars.