Sight distance is of the utmost importance for traffic safety. The consideration of three‐
dimensional (3D) available sight distance (ASD) in geometric design has been supported by …

The roadside of horizontal curves should be cleared of any obstructions to satisfy sight
distance (SD) requirements. This paper proposes an innovative roadside design curve for …

Guidelines for geometric design of highways require that the inside of horizontal curves be
cleared of obstructions to sight in order to provide necessary sight distance. Many of these …

Sight distance is an important design element of curved highway sections. To ensure that
design sight distance is provided on curved sections, AASHTO guidelines require that the …

AASHTO's guideline for geometric design of highways and similar guidelines require that
roadside areas on the inside of horizontal curves be cleared of high objects to provide …

This paper presents a proposed concept of a spiraled roadside curve for determining the
required lateral clearance that satisfies sight distance needs on a roadway reverse …

This paper presents an innovative design method for determining lateral clearance needs
on a spiraled horizontal curve to satisfy sight distance requirements. The roadside lateral …

Following the roadside design curve of a spiraled roadside curve (SRC) previously
proposed by the authors, this paper examines the characteristics of the required lateral offset …

The AASHTO's guideline for geometric design, also known as the green book, requires that
the inside of horizontal curves be cleared of obstructions to sight lines in order to provide …

Sight distance is of the utmost importance for traffic safety. The consideration of three-
dimensional (3D) available sight distance (ASD) in geometric design has been supported by …