Author: Indian Road Congress
Place: New Delhi
Publisher: Indian Roads Congress
Year: 1981
Pages: 11
Subject: Transportation
Sub-Subject: City Infrastructure
Keyword: Road Delineators, Indian Roads Congress
Classification: 352.7
Shelf: C2R3
Accession No: B922
Contents: Introduction, Scope, Roadway Indicators, Hazard Markers, Object Markers, Requirements for Reflectors, Installation of Delineators, Maintenance
Abstract: Delineators are visual aids used to guide drivers by indicating the road’s alignment, particularly at night or in poor visibility conditions like fog, rain, or snow. These devices are especially effective in complex road sections involving changes in horizontal or vertical geometry. Reflective materials are typically incorporated into delineators to enhance nighttime visibility. Broadly, delineation includes any method or device that outlines the roadway, such as painted lines, raised pavement markers, posts, reflectors, or pavement contrast treatments. While delineation through pavement markings is addressed in IRC:35-1970 (“Code of Practice for Road Markings with Paints”), the focus of the mentioned standard is on post-type delineators, both with and without retro-reflective components. The standard was developed by the Traffic Engineering Committee and was first discussed during a meeting in Trivandrum on October 3–4, 1977. Key committee members involved in finalizing the document included Shri A.K. Bhattacharya, Shri R.P. Sikka, and Dr. N.S. Srinivasan, who were tasked with revising the draft based on the meeting’s deliberations. This standard aims to improve road safety by providing clear guidelines for the use of delineators in diverse driving conditions.