00781504

Component

https://doi.org/10.3141/1690-03

http://scholar.google.com...elch&publication_year=1999

A project to develop a flared guardrail end terminal system that would meet National Cooperative Highway Research Program (NCHRP) Report 350 Test Level 3 (100 km/h) requirements was initiated at the request of a group of small guardrail manufacturers that did not have access to such a system. This was a major concern to this group that needed to have access to such a system before the October 1998 Intermodal Surface Transportation Efficiency Act of 1991 implementation date for NCHRP Report 350 roadside hardware. A set of design, performance, and cost objectives was established, and a decision was made to qualify the system for both weak and strong soils. The development project resulted in a new type of design and specifications for the wood posts used in the end terminal section. The redirective and gating end terminal (REGENT) system was designed and tested to meet the conditions described in NCHRP Report 350 (Test Level 3) and was approved for use on the National Highway System by the Federal Highway Administration. The REGENT system was tested when it was attached to both wood and steel downstream guardrail posts.

This paper appears in Transportation Research Record No. 1690, Roadside Safety and Other General Design Issues.

English

p. 17-30

1999

Transportation Research Record

0309071208

Figures (9) ; Photos (30) ; References (8)

Crash tests; Design; Guardrail terminals; Posts; Specifications; Steel; Wood

NCHRP Report 350

Flared terminals

Design; Highways; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure

TRIS, TRB, ATRI

Jan 19 2000 12:00AM

• CHOOSING AN INVENTORY DATA COLLECTION SYSTEM
• CONNECTING MINNESOTA: SUPERHIGHWAYS TO INFORMATION SUPERHIGHWAYS
• CRASHWORTHINESS OF ROADSIDE FEATURES ACROSS VEHICLE PLATFORMS
• DEVELOPMENT OF A FLARED ENERGY-ABSORBING TERMINAL FOR W-BEAM GUARDRAILS
• EFFECTS OF COHESIVE MATERIAL PROPERTIES ON LOCAL SCOUR AROUND PIERS
• EFFECTS OF POST AND SOIL STRENGTH ON PERFORMANCE OF MODIFIED ECCENTRIC LOADER BREAKAWAY CABLE TERMINAL
• FACTORS RELATED TO PROBABILITY OF JOINT FLOODING ON PAIRED STREAMS IN OHIO
• HEAVY-GOODS VEHICLE COLLISIONS WITH STEEL ROAD SAFETY BARRIERS: COMBINED INFLUENCES OF POSITION OF CENTER OF MASS AND TIRE-PAVEMENT FRICTION
• HYDRODYNAMIC COUNTERMEASURES FOR LOCAL PIER SCOUR
• INFRASTRUCTURE INVENTORY AND CONDITION ASSESSMENT USING AIRBORNE LASER TERRAIN MAPPING AND DIGITAL PHOTOGRAPHY
• REEXAMINATION OF ROADSIDE ENCROACHMENT DATA (WITH DISCUSSION AND CLOSURE)
• RESOURCE SHARING: WIRELESS TELECOMMUNICATIONS SITE LEASE RATES
• REUSABLE HIGH-MOLECULAR-WEIGHT, HIGH-DENSITY POLYETHYLENE CRASH CUSHIONS FOR WIDE HAZARDS
• ROADSIDE SAFETY ANALYSIS PROGRAM AS A TOOL FOR ECONOMIC EVALUATION OF ROADSIDE SAFETY PROJECTS (WITH DISCUSSION AND CLOSURE)
• SOME EXPERIENCE WITH GEOSPATIAL IMAGERY AND ROUTE OPTIMIZATION
• SURVEYOR: MOBILE HIGHWAY INVENTORY AND MEASUREMENT SYSTEM
• TWO-DIMENSIONAL MODELING OF COLLISION DYNAMICS OF DEFLECTING CONCRETE BARRIERS
• USING LS-DYNA SIMULATION TO SOLVE A DESIGN PROBLEM: BULLNOSE GUARDRAIL EXAMPLE
• VARIATION IN CHARACTERISTICS OF ABRADED ROADWAY PARTICLES AS A FUNCTION OF PARTICLE SIZE: IMPLICATIONS FOR WATER QUALITY AND DRAINAGE
• VIDEOLOG ASSESSMENT OF VEHICLE COLLISION FREQUENCY WITH CONCRETE MEDIAN BARRIERS ON AN URBAN HIGHWAY IN CONNECTICUT