The End Centerline Offset is the minimum offset from the nearside or offside curbs or definition lines. The End Distance from Exit Line is the straight line distance from the inscribed circle to the front axle of the test vehicle. The Radius Calculation Length is the length over which the...
In some cases, particularly where the ICD is small or the design vehicle is large, the turning requirements of a design vehicle may result in unsafely constricted circulatory roadway for passenger vehicles that move behind on minimum radius. In such cases, the circulatory roadway width can be ...
The only issue would be one of the roundabout design enabling engines to carry out u-turns. Our minimum ICD is 28m/92ft, with the central island sized to accomodate the u-turn of a large artic', 4m/13ft. If you are concerned about the closeness of the access to the roundabout causin...
The Curb Taper Inner Radius is the radius at the roundabout end of the taper reverse curve (0 = no radius is applied). Select Equal Spacing Between Lanes to even out the lane width. The Longer Inner Lane Line defines which lane is longer (outer/inner) when adding extra lanes. By ...
Further, radius of the central island (IRAD), width of the circulatory roadway (WIDTH) and number of legs (NO_LEG4, NO_LEG5) were significant at the 90%-level. The minimum sector angle (MIN_SA) yielded a p-value <0.20. Hence, these were the variables used to fit the model at ...