Geometric Design Of Suburban Roundabouts Considering A Case Study In Bhopal (m.p)- A Review

• Author(s):

  Heena | Hitesh Kodwani

• Keywords:

  Approach Alignment; Outer Radius; Circulatory Roadway; Apron; Splitter Island; Roundabout Entry; Roundabout Exit; Longitudinal Slope.

• Abstract:

  A Contemporary Roundabout Is A Crossroads With A Circulation Roadway Where Traffic Flows Continuously In One Direction Around The Central Island That Leads To The Approach Legs' Exits. Vehicle Speeds Are Also Modest. The Following Steps Make Up The Iterative Process Of Modern Roundabout Design: (1) Determining That The Roundabout Is The Best Traffic Solution; (2) Defining The Number Of Lanes At The Intersection Based On The Level Of Service And Required Capacity; (3) Designing The Roundabout Geometry Initially; (4) Designing The Vehicle Swept Path, The Fastest Path Analysis, And Visibility Performance Checks; And (5) Designing The Roundabout In Detail If The Performance Checks' Findings Support The Design Criteria. Compatibility Between The Initial Roundabout Geometry Design Parts Must Be Carefully Considered Because They Are Not Independent. Roadway Design Includes The Following Steps: Establishing The Road Alignment; Calculating Sight Distances, Radii Of Horizontal Curves, And Lengths Of Vertical Curves; Charting The Alignment Profile Using Bearings Or Co-ordinates (easting And Northing); Determining Stations And Elevations Of Points Along The Proposed Route; Calculating Earthwork Quantities; And Many Other Studies And Calculations. These Computations Are Performed To Find The Optimal Alignment While Fulfilling Design Specifications. Manual Geometric Design Is Extremely Time-consuming, Labour-intensive, And Prone To Costly Errors. There Is Currently A Need For Computer Software To Be Used In The Planning Of Roadway Geometry. The Software Offers Huge Time And Effort Savings And Is Incredibly Accurate. In This Study, A Comprehensive Geometric Design Of A Typical Roundabout Is Presented Using Both AutoCAD And MX ROAD Software Considering Three Roundabouts In Bhopal (M.P) Which Have Majorly Reported Fatal Accidents. Enabling The 3D Visualisation Of The Design Saves Money And Time.

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Other Details

• Paper id:

  IJSARTV11I5103680

• Published in:

  Volume: 11 Issue: 5 May 2025

• Publication Date:

  2025-05-26

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