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Interactive Graphics Intersection Design System (IGIDS) Users Manual: Update to Appendix C
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2001-10-01
[PDF-5.94 MB]
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Abstract:The Interactive Graphics Intersection Design System (IGIDS) is a computer software program developed for TxDOT that assists engineers in the analysis and design of individual, at-grade intersections. IGIDS was initially developed under several RMC 3 – Geometric Design, Environmental, Hydraulics, and Right-of-Way projects. IGIDS is a MicroStation application which contains (1) geometric, traffic data, and signalization definition tools; (2) built-in analysis tools for vehicle turning templates; horizontal sight distance checking for stop sign, yield sign, and no control; and “Highway Capacity Manual” (HCM), Chapter 9 procedures; and (3) interfaces to external analysis programs for the TEXAS Model for Intersection Traffic (TEXAS), the TxDOT Automated Plan Preparation System (APP), and the Signal Operations and Analysis Package (SOAP). IGIDS can operate in English or metric units. IGIDS was recently enhanced by the addition of vertical sight distance checking within the horizontal sight triangle, the inclusion of pavement striping definition and tabulation, and the development of training materials.
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