Report, Issues 156-160An integrated approach is presented for systematically incorporating social, economic, and environmental factors into transportation planning and decision making. The timely identification is stressed of the nature, magnitude, and incidence of these potential factors so that in all phases of transportation planning, alternatives may be developed that avoid or minimize adverse effects and that take full advantage of opportunities to increase benefits. The early, effective, knowledgeable involvement of the public to clarify issues and to aid in the development and evaluation of proposals in emphasized, and the effective use is stressed of expertise and resources both of the transportation agency and of other agencies with maximum flexibility and openess. Objectives for all phases of a transportation planning and design process are listed, a 4-phase study strategy is proposed, and the roles of the transportation professional are reviewed. |
Contents
SUMMARY | 1 |
CHAPTER TWO FindingsOverview | 9 |
CHAPTER THREE FindingsProcedural Guidelines | 15 |
Copyright | |
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AASHO Road Test acceleration agency alternatives analysis period Appendix approach average back slope coefficient of friction community interaction computer program configuration construction crash cushion data base deceleration decision-making decisions Department of Transportation determine developed ditch effects embankment encroachment angle Engineer environmental evaluation expansive clay factors Federal Federal Highway Administration fish scale flow Freeway front slope g-forces groups highway agency impact impact attenuation implementation initial input interest layer length level of service major weave material maximum ment module MSEC multiple weave Nomograph nonweaving operating overlay pavement design pcph percent PINY prediction problems procedure ramp weaves regional responsibility roadway SAMP6 shown in Figure simulated specific speed structural Subroutine subsystem system planning Table techniques tion tires total cost traffic transportation planning Transportation Research Board Urban values variables weaving section weaving volume wheel width