Air Bag Interaction with and Injury Potential from Common Steering ControlDevices

摘要

This research study investigated guide signing practices used around the stateand the rest of the nation for multilane exits. In particular, the research focused on signing for multilane exits with optional lanes. Photographs were taken of guide signing at multilane interchanges in the cities of San Antonio, Houston, Dallas, and Fort Worth, Texas. In addition, a questionnaire was sent to the state traffic engineers of each state, asking that they indicate their methods of signing for a multilane exit with an optional lane and a secondary ramp split. The results of both studies indicated that a variety of signing practices for multilane exits are used in Texas and across the nation. The research findings indicate that the current method of signing for multilane exits should continue to be used. Additional evaluations should continue in this subject area.