Keywords: Solomon Curve.png en Graph plotting the deviation from average speed vs the collision rate that shows the results of Solomon's research from 1964 which after publication has been called the Solomon curve Accidents on main rural highways related to speed driver and vehicle David Solomon 1964 Electronic image taken from the slides of Robert C Feenstra a Professor at the Department of Economics University of California Davis and holder of the C Bryan Cameron Distinguished Chair in International Economics http //www econ ucdavis edu/faculty/fzfeens/trans/Transport-lecture4 ppt David Solomon confirmed that the 'Solomon curve' is not copyrighted It is in the public domain and was originally published by the Government Printing Office in 1964 PD-USGov Plots |