The HCS software computes capacity per the HCM method. HCS implements the following HCM methods: Signalized Intersections, Unsignalized Intersections, Urban Streets, Freeway Basic, Freeway Weave, Freeway Ramps, Freeway Facilities, two-lane Rural Roads, Multi-lane Rural Highways, and Transit. As such, excepting for programming errors, which are corrected as soon as they are found, the HCS software computes the HCM LOS exactly according to the HCM methods. The HCS software is intended to be a faithful implementation of the Highway Capacity Manual. The section describes how the MOEs are computed by the HCS software, Version 5.2, developed by the University of Florida, in 2005. This section describes the methodologies used by the operations analysis tools to compute the MOEs that were selected for further investigation in Chapter 2. 4.1 Description of MOE Computation Methodologies Variations in the reported MOEs are noted. Then the tools are tested on a simple test bed under both free-flow and congested traffic demand conditions. First the computation methodologies are explained based upon published user guides for each tool and informal correspondence with the software developers. This chapter presents the results of a comprehensive investigation into how commonly used traffic analytical tools define and calculate commonly used MOEs. Traffic Analysis Tools Measures of Effectiveness 4.0 Calculation of MOEs by Traffic Analytical Tools You can visit the Governors Highway Safety Association to learn about the laws in your state.Table of Contents Traffic Analysis Toolbox Volume VI:ĭefinition, Interpretation, and Calculation of Many states now have laws against texting, talking on a cell phone, and other distractions while driving. Your state legislature and governor make the laws regarding distracted driving. One of the highlights of this relationship comes during April’s Distracted Driving Awareness Month, which pairs a national advertising campaign with a law enforcement crackdown called U Drive. The states determine laws affecting distracted driving, but NHTSA provides federal investments in the locally driven strategies that address the states’ specific needs. The foundation of NHTSA’s efforts on distracted driving and other risky driving behaviors is our partnership with the states and local police. You’ve likely seen or heard our public service announcements, but we’re also on Facebook and Twitter sharing stories and tips to help save lives. NHTSA’s campaigns and public service announcements make the case to Americans that safe driving means driving without distractions. NHTSA leads the fight nationally against distracted driving by educating Americans about its dangers and partnering with the states and local police to enforce laws against distracted driving that help keep us safe. NHTSA is dedicated to eliminating risky behaviors on our nation's roads If you feel strongly about distracted driving, be a voice in your community by supporting local laws, speaking out at community meetings, and highlighting the dangers of distracted driving on social media and in your local op-ed pages. Ask your students to commit to distraction-free driving or set a company policy on distracted driving. Spread the word at your school or workplace about the dangers of distracted driving. Educators and EmployersĮducators and employers can play a part, too. Remind your teen driver that in states with graduated driver licensing (GDL), a violation of distracted-driving laws could mean a delayed or suspended license. Have everyone in the family sign the pledge to commit to distraction-free driving. Parents first have to lead by example - by never driving distracted - as well as have a talk with their young driver about distraction and all of the responsibilities that come with driving. Teens can be the best messengers with their peers, so we encourage them to speak up when they see a friend driving while distracted, to have their friends sign a pledge to never drive distracted, to become involved in their local Students Against Destructive Decisions chapter, and to share messages on social media that remind their friends, family, and neighbors not to make the deadly choice to drive distracted. We can all play a part in the fight to save lives by ending distracted driving.
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