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原文传递 INTERACTIVE HIGHWAY SAFETY DESIGN MODEL: DESIGN CONSISTENCY MODULE.

题名：	INTERACTIVE HIGHWAY SAFETY DESIGN MODEL: DESIGN CONSISTENCY MODULE.
作者：	Krammes-RA
关键词：	ROAD-DESIGN; HIGHWAY-DESIGN; HIGHWAY-DESIGN-SPEED; INTERACTIVE-HIGHWAY-SAFETY-DESIGN-MODEL; COMPUTER-AIDED-DESIGN; INTERACTIVE-GRAPHICS; HIGHWAY-PLANNING; HIGHWAY-SAFETY; MODELS-; GEOMETRIC-DESIGN; ROAD-CURVES; HIGHWAY-CURVES
摘要：	The Design Consistency Module (DCM) is one of five modules of the Interactive Highway Safety Design Model (IHSDM), an integrated system of modules that highway planners and designers can use to evaluate the safety of highway geometric design alternatives within a computer-aided design (CAD) environment. The DCM provides highway planners and designers with feedback about the reasonableness of their design-speed assumptions. Expected speed reductions are derived from a speed-profile model that estimates speeds at each point along a roadway as a function of the geometry of the roadway. The model combines estimated 85th percentile speeds on curves and desired speeds on long tangents with estimated deceleration and acceleration rates entering and departing curves to produce the speed profile. The DCM is executed through a dialog box within the CAD environment. To facilitate interpretation of results, the user may request options in the dialog box to color-code or flag elements in the speed profile that require extra attention.
总页数：	Public Roads. 1997/09. 61(2) pp47-51 (1 Phot., 6 Fig., 6 Ref.)
报告类型：	科技报告