This volume, the second of a four-volume report, describes research conducted to develop a procedure for identification and correction of inconsistent geometric highway elements and features that occur on non-freeway facilities. Highway design elements and groups of elements (features) judged to be potentially inconsistent were enumerated and evaluated. A procedure for assessing the consistency of existing or proposed designs was prepared. A recommended cost-effectiveness methodology was presented. The data base included a set of 140 geometric features located in Georgia and Texas and identified by field engineers to be experiencing operations and safety problems. These sites were systematically evaluated. Over 70 subject drivers and 21 research and highway design engineers reviewed some or all of these features. Geometric complexity of the features, sight distance, feature separation distance, speed and vehicle conflicts were noted to contribute to expectancy violations.
Samenvatting