Roadside Design in the Future
Since the first roadways were built, highway designers have constantly been striving to ensure that motorists can travel to their destinations on safe highways. However, their efforts...
Effects of Shoulder Reductions on Highway Safety
In order to accomodate existing traffic and projected growth, it is essential that the most effective use be made of the limited right-of-way available for freeways. It is important to...
Shoulder Rumble Strips at Narrow Bridges
The highways in the United States have thousands of minimum design narrow bridges. Replacement of these bridges with current state of the art designs is not cost effective nor feasible...
Effects of Lane Width Reduction on Safety and Flow
This research dealt with the issue of lane narrowing as an alternative to pavement widening in providing safety improvements on urban freeways. This study dealt with I-95 in Miami Florida...
Selection of Performance Levels for Longitudinal Barriers
There is a demand within the highway community for multi-service level safety features, including traffic barriers. The need has become more acute in recent years as revenues decline and...
Performance of Highway Traffic Barriers
This paper describes an investigation of traffic barrier performance in New York State. A one-year sample of all traffic-barrier accidents in the state was obtained from Department of...
Transitioning End Terminal A TRENDtm for the Future
The highway engineer frequently starts from a position where an identified highway element is causing serious injuries or fatalities to motorists on the nation's highways....
End Treatments for Deep Beam Highway Guardrail
End treatments on highway guardrail serve two functions: (1) to make the end safe in case of an impact there, and (2) to provide anchorage in case of an impact adjacent to the end. Two...
Hazardous Events After Redirectional Collisions
The potential for hazardous events occurring to vehicle occupants after a redirection from a longitudinal barrier has not been adequately addressed. Very few studies are available which...
Occupant Risk in Longitudinal Barrier Collisions
The following paper presents data derived from sled test experiments, full-scale vehicle crash tests as well as an in-depth analysis of accident data which suggest that occupants are not...
What is a Forensic Engineer?
A forensic engineer is one who is concerned with the relationship and application of engineering facts to legal problems. He is an acknowledged expert who investigates construction-related...
Failure Investigations for Forensic Engineering
Failure investigations related to construction Industry is described in detail in the article. A failure investigation is one of the most demanding of engineering undertakings. It requires...
What to Do When a Failure Occurs
When a major building problem involving structural failure occurs, action should begin immediately to determine the damage or failure and detect the underlying problem. This paper will...
An Historical Perspective of Failures of Civil Engineering Works
The blight of failures has smitten civil engineering works since ancient times. An examination of historic cases reveals relationships to contemporary cases that are useful in guiding...
Failure Classifications
A detailed description of the failure classification with respect to the constructed facilities is presented. Author is of the opinion that most reports of failure even of an extensive...
Data Collection and Information Dissemination: Current Efforts and Challenges
The need for the civil engineering community to collect and disseminate information on failures has been discussed widely. It appears that in recent years our profession's reluctance to...
Large Mat Foundation Analysis on Expansive Soil
This paper describes a comparison of predicted and observed performance of mat foundations on stiff expansive soil. Foundation performance was predicted using a new computer program BOSEF...
What is an Expert System
Knowledge-based expert systems (KBES) have created much excitement in the civil engineering computer user community. KBES evoke expectations of full-blown Artificial Intelligence (AI)...
Expert System Tools for Civil Engineering Applications
Expert system software tools have played a major role in expediting program development. Some problems should not and possibly cannot be solved by current expert system technology. For...
Attributes and Characteristics of Expert Systems
This paper discusses some of the characteristics of expert systems, with emphasis on the incorporation of these attributes in the development stage. It is suggested that the scope of expert...
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