The research project examined certain effects of converting the Interstate 30 (I-30) frontage roads in the central Arkansas area from two-way operation to one-way operation in 2002. The following characteristics before and after the conversion were studied: the number of crashes; traffic volumes; speeds; travel times between nodes; land use; sales taxes for certain businesses; and the opinions of business owners and operators in the corridor.

This report presents the results of an attitude survey concerning one-way and two-way freeway frontage roads. This research was part of a two-year study for developing warrants for conversion from two-way to one-way frontage roads. Interviews were conducted with 121 individuals in 15 different small and medium-sized cities in Texas. All of the 15 cities have freeways with two-way or one-way frontage roads. The results of the attitude survey showed that the increased safety associated with one-way frontage roads is universally recognized by all interest groups. Operational considerations, such as capacity, are much less understood.