I know this will be easy for most of you, but new to me.

I have a current spreadsheet with some data in it for various highways
such as accident rates and such. The highways are in rows and the data
in the columns. I have some blank columns for traffic volume.

I have a new input sheet where I want the user to be able to input the
highway, beginning and ending milepost (which need to match up to the
other sheet where the data is held), the traffic data and then using a
macro I want that data to be stored into the other sheet under the
correct highway row.

Thanks for any help.