› › Development Of Guardrail To Bridge Rail Transition

Development of Guardrail to Bridge Rail Transition

Author : Roger P. Bligh

Publisher :

Page : 152 pages

File Size : 47,52 MB

Release : 1988

Category : Bridge railings

ISBN :

Get eBook

Book Description

This report describes the development and testing of a guardfence-to-rigid bridge rail transition. The transition consists of a tubular W-beam supported on 7 inch diameter round wood posts. It is designed to transition to a vertical wall or to the concrete safety shaped barrier. It can be used on new construction or as a retrofit for existing installations. Based on a full-scale vehicular crash test program, the design was judged to be in compliance with recommended impact performance criteria as presented in NCHRP Report 230. Also described is a tentative design for approach guardfence at bridge ends near an abutting roadway. The design consists of short radius, curved guardrail supported on weakened round wood posts.





Roadside Design Guide

Author :

Publisher : Amer Assn of State Hwy

Page : 352 pages

File Size : 45,59 MB

Release : 1996-01-01

Category : Bridge railings

ISBN : 9781560510314

Get eBook

Book Description

This document presents a synthesis of current information and operating practices related to roadside safety and is developed in metric units. The roadside is defined as that area beyond the traveled way (driving lanes) and the shoulder (if any) of the roadway itself. The focus of this guide is on safety treatments that minimize the likelihood of serious injuries when a driver runs off the road. This guide replaces the 1989 AASHTO "Roadside Design Guide."





Roadside Safety Design

Author : United States. Federal Highway Administration

Publisher :

Page : 276 pages

File Size : 40,56 MB

Release : 1975

Category : Highway engineering

ISBN :

Get eBook

Book Description

This roadside safety design package has been developed to satisfy a need for training in this area. It is hoped that all persons involved in the design, construction, operation, and maintenance of highways will become familiar with the concepts contained in the program. The concepts and practices discussed come from those contained in the AASHTO publication, "Highway Design and Operational Practices Related to Highway Safety". They are discussed in considerable depth in this program and should provide a good working knowledge of roadside safety design. Much of the program is oriented around freeways; however, the principles apply equally toward the lower order highway.









Guardrail Performance and Design

Author : Jarvis Dale Michie

Publisher :

Page : 432 pages

File Size : 34,1 MB

Release : 1971

Category : Transportation

ISBN :

Get eBook

Book Description

Barrier installations are warranted (or justified) only at highway locations where the consequence of an errant vehicle leaving the roadway is judged to be more hazardous than the impact with the barrier installation. A six degree-of-freedom mathematical model was found to be useful in describing dynamic behavior of a vehicle during impact. Predictions of vehicle and barrier behavior correlated with results obtained from full-scale crash tests. Crash conditions simulated with a computer were used to identify and evaluate vehicle static and dynamic as well as barrier parameters. Vehicle weight, yaw mass moment of inertia, and deformation constant were found to be significant.