This study evaluated the effectiveness of treatments to reduce vehicle speeds at high-speed intersections. The treatments included geometric design features as well as signage and pavement markings. In the first phase of research, potential treatments were evaluated based on their applicability, key features, speed effects, safety benefits, multimodal impacts, and maintenance issues. The most promising treatments were evaluated using field testing at 10 sites in Oregon, Washington, and Texas. The following guidelines are based on the research results and will provide highway planners and designers with an important new tool in their ongoing efforts to improve safety on our highway systems. A final report documenting the entire research effort is available online as NCHRP Web-Only Document 124 at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_w124.pdf. (Author/publisher) This report may be accessed by Internet users at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_613.pdf
Samenvatting