Artificial Intelligence in Simple Beam Design
The concept of an intelligent computer program is introduced using the design of a simply-supported wide-flange beam as a model. The key to the approach is component selection through...

Balancing of Trunnion-Type Bascule Bridges
This paper reports an improved balancing technique using continuous strain-gage recording of drive-shaft torque during both opening and closing of bascule bridges. Explicit formulas for...

Sum of Dependent Gamma Loads
A model for correlated sustained live loads is outlined. The live loads are assumed to be gamma distributed random variables. It is shown that already small correlations between loads...

Lawsuits Arising Out of Reconstruction
Liability judgements resulting out of negligence in the performance of highway design, construction or maintenance activities have continued to increase in the past decade, notwithstanding...

Structural Design of Cemented Pavement Layers
A mechanistic structural design procedure for pavements containing cement- and lime-treated layers is outlined. The procedure includes provision for use of a range in traffic wheel loadings,...

Guideway Geometry for AGT Systems
A logical method of defining horizontal and vertical Automated Guideway Transit (AGT) guideway geometry is presented. Only geometric accelerations and jerk are considered, which are defined...

Transit Performance Evaluation Model
An analytical methodology, known as the Transit Performance Evaluation Model, has been extended and applied. The model is used to evaluate the effect on transit performance from short...

Turnkey Projects for Downtown People Movers
Los Angeles, Detroit, and Miami received proposals for construction of downtown people mover systems. The requests for bids contemplated turnkey type construction contracts. The multiplicity...

Bus Stop Location and Design
Those elements associated with the location and design of bus stops that affect the efficiency of transit and traffic operations are identified. This evaluation was accomplished using...

Traffic Signals at New and Rebuilt Intersections
The need for traffic signals at an intersection is generally determined by the application of the Manual on Uniform Traffic Control Devices (MUTCD) warrants. When the volume warrants are...

Safety Studies Related to RRR Projects
The Federal Highway Administration has several research efforts specifically aimed at determining the impact of the Resurfacing, Restoration, and Rehabilitation (RRR) Program and, in general,...

Design of Pedestrian Space in Airport Terminals
A method to determine the required width of corriders and size of passenger staging areas in airport terminals is presented. It introduces two novel elements into the planning process...

Improved Mobility for Elderly and Handicapped Persons
The mobility of elderly and handicapped persons can be improved in an economical manner by using existing resources more efficiently. Techniques such as coordination of social agency transportatiion...

Airport-Passenger Parking Design
Despite standard procedures for estimating the quantity of parking space for airports, great difficulties persist at many terminals. These principally concern the amount of space available...

Expressway Route Optimization by OCP
The optimum curvature principle (OCP) is applied to the horizontal alignment optimization of an expressway in flat South Florida between two given points. Construction cost is the criterion...

Porous Pavement: Research, Development, and Demonstration
This paper discusses the U.S. Environmental Protection Agency's porous pavement research program along with the economies, advantages, potential applications, and status and...

Aircraft Evaluation in Air Network Planning
The relationship between aircraft technology and the structure of air service networks in short haul systems is investigated. The analysis is based on an optimal frequency assignment model...

Buried Pipelines: Providing Flexibility at Structures
When differential settlements occur bmtween a structure and the connected buried piping, the pipe is subjected to longitudinal bending, and joints deflect. The length of the pipe section...

Barriers in Highway Work Areas
A design process has been developed to determine the necessity for temporary positive barriers systems in highway work zones. The methodology includes two prescreening steps to determine...

Control of Adverse Wind Near Buildings
The characteristics of basic flow modules associated with an isolated building, a fence and building combination, and a building with various canopies in a simulated atmospheric boundary...

 

 

 

 

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