Environmental Permitting a Major Expressway Facility in Florida
As general consultant to the Tampa-Hillsborough County Expressway Authority, Howard, Needles, Tammen and Bergendoff (HNTB) was responsible for the environmental permitting required for...
Restoration of a Buttress Dam
Inspections of Morris Shepard Dam on the Brazos River in Texas revealed serious defects in the dam and its foundation. Piezometric pressures below the spillway buttresses greatly exceeded...
Morris Sheppard Dam: A Rational Approach to Stability Analysis
This paper details the excessive foundation piezometric conditions found during a routine five-year inspection, and presents the results of backfigured stability analysis of a critical...
Planning the Developmemt of the OASIS Advisory System
This paper describes the evolution of the Operations Advisory and Simulated Intelligence System (OASIS). In its first phase, already concluded, a prototype was developed for testing the...
Fuzzy Sets in Civil Engineering?A Tutorial
This tutorial is an introduction to the theory of fuzzy sets and its applications in Civil Engineering, including its use within the framework of knowledge-based systems. The techniques...
A Rational Basis for Determining Safety of Containment
Design of waste containment facilities may follow one of three tacts: (1) the liner and cover systems may have prescribed components of predetermined minimum thicknesses and hydraulic...
Conflict Resolution, Reallocation and Management of Lake Texoma Resources
From its inception, Lake Texoma has created conflicts among users of its natural resources, including hydropower, water supply, flood control, and recreational users. Many attempts have...
Review of the Design, Construction, and Operation of the Lake Carolyn Flood Control Pump Station
A review of the design, construction, and initial operation of the Lake Carolyn Flood Control Pump Station in Irving, Texas is presented. Staged water resource development design concepts...
MacIntosh II True-Color Visual Simulation Project: A Proposed Elevated Rail System for Metropolitan Phoenix
Utilizing new high-resolution, 24-bit true-color technology available for the Macintosh II microcomputer, this project enabled professional consultants and the public to visualize a proposed...
An Expert System for the Motivation of Traffic Signals
A case study is presented describing the initiation and development of a prototype knowledge-based system for the motivation of traffic signal control, to be applied within a user-sensitive...
SIGNALEXPERT: An Expert Syste, for Signalized Intersection Analysis and Design
This paper presents a prototype expert system, (SIGNALEXPERT), for signalized intersection analysis and design. The SIGNALEXPERT consists of four modules. The first module determines if...
A Knowledge-Based Approach to the Design of Highway Bridge Foundations
This paper discusses the development of a prototype expert system using a commercially available expert system shell. The system is to be used for the selection of highway bridge foundations....
Generating Collision Diagrams
The paper discusses the COLLDIAG computer program which, when working in conjunction with a powerful computer-aided drafting program (AutoCAD), can generate collision diagrams for various...
Implementation of HISAM/HISAFE Microcomputer Programs
The Federal Highway Administration had sponsored the development of two software packages called HISAM and HISAFE. HISAM primarily provides an alternative means to store related accident...
Guidelines for Micro-CADD Implementation - How You Can Do it Right the First Time
This paper discusses methods found to be useful in applying selected lower cost microcomputer-CADD systems in the civil engineering environment CAD is defined as Computer Aided Drafting...
California DOT CADD
Starting in 1983 the California Department of Transportation (Caltrans) embarked on a project to incorporate current computer technology into the project development process. Today the...
A Microcomputer Program for Roadway Lighting Design
LUMSIM is a knowledge-based design program that uses operator input data and design criteria to select the most economical lighting system. The initial input parameters include pavement...
Traffic Simulation and its Graphic Presentations
A computer simulation program for traffic signal timing design was developed. The program can provide some appealing graphic presentations not only of input data but also of output results....
Computer Aided Design of Traffic Signal Systems
Computer Aided Design and Drafting (CADD) has traditionally been the domain of powerful and expensive computers. Personal computer technology, however, is rapidly changing this trend by:...
MECHOD: A Mechanistic Overlay Design Program for Flexible Pavements
This paper presents a fully mechanistic asphalt overlay design procedure for use on microcomputers. The procedure is based on fundamental characteristics of pavement layer properties and...
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