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Space Habitat Contaminant Growth Models?Part II
This paper reports on the continuation of work being done at NASA's Center for Space Environmental Health (CSEH) at the University of Colorado at Boulder on contaminant growth modelling...

Regolith Dynamics
Due to the differences of the gravitational accelerations of the Earth and Lunar environments, geotechnical engineering must be applied differently in the two environments. This study...

Principles of Control for Robotic Excavation
Excavation can be considered one of the most unstructured problems in the construction environment. On one hand, many technologies have been developed in the past to build shelters using...

An Operational Evaluation Process for Long-Duration Mission Habitats in Space
In preparation for long-duration manned spaceflight into the 21st Century, the ergonomical and psychological aspects of space habitat architectures are being investigated in Europe. Used...

An Integrated Human/Plant Metabolic Mass Balance Model
The design and development of Controlled Ecological Life Support Systems (CELSS) in support of future Lunar and Martian bases requires analytical models for evaluating human and biological...

Launching Facility Constraints on the Space Exploration Initiative
The Space Exploration Initiative (SEI) proposes large space programs such as a human mission to Mars and the establishment of a lunar base. These programs will require massive logistical...

Geographical Information System (GIS) Technology in Global Environmental Evaluation?An Overview
The Land Analysis Team at the Construction Engineering Laboratory is enhancing the GRASS software package to deal with global environmental questions. CERL has implemented the basic software,...

Space Education Day
Commemorating 1992 as the International Space Year, the Governor of Colorado and the SPACE '92 Executive Committee elected to include in the SPACE '92 Conference a full day of activities...

An Analysis of Human Performance in Simulated Partial-Gravity Environments
Three unique partial gravity test environments; parabolic flight, water immersion and a mechanical-relief device provide the environment to evaluate human locomotion, reach sweeps, and...

Preliminary Investigation of a Lunar 16 Meter Optical Telescope
The results of a year-long effort to develop a design concept for the structure of a 16 meter lunar optical telescope are presented. Various mounting configurations and mirror configurations...

Object Oriented Spacecraft Architecture
This paper describes an architecture for simplifying the spacecraft design and maintenance process: Object Oriented Spacecraft Architecture. Like object oriented programming, the strategy...

Using Simulation to Evaluate On-Orbit Construction Operations
As the NASA Space Exploration Initiative (SEI) program contemplates a permanent presence on both the Lunar and Martian soil, the necessity for On-Orbit Construction of the Earth-to-Lunar/Martian...

Characteristics of High-Speed Runway Exits for Airport Design
This paper addresses some of the geometric design and operational characteristics of high-speed runway exists. Lateral and longitudinal runway constraints limiting the use of high-speed...

Soft Touch People Mover Central Control
The people mover central control systems perform many automatic functions, are built with off-the-shelf redundant hardware, include advanced color graphics and touch screen operator interfaces,...

Impact of the New Denver Airport on the Air Traffic Control System
Building the new Denver Airport has two major impacts on air traffic control: first, it requires redesigning the airspace surrounding the Denver area; and second, it requires moving to...

A Guideline for Determining Minimum Threshold Requiring Traffic Impact Studies
Over the years, a number of localities have developed and adopted some form of traffic impact assessment (TIA) guidelines. As part of this study, an informal survey conducted showed that...

Comparison of Delay and ICU Analyses?Case Study
Traffic Management Initiative was a petition-based referendum that sought to limit traffic impacts of proposed or planned development through the use of more stringent transportation planning...

ICU?A Method of Analyzing Signalized Intersections
There is a need for decision makers, developers and the public to understand the potential traffic impacts of site development. Signalized intersection operations are a primary indicator...

Trends in Published ITE Trip Generation Rates
Since 1976...

Trip Generation Rates, a Historical Look
This paper compares the 1990 weighted average trip generation rates of military bases, shopping malls, universities, airports, and hospitals for San Antonio-Bexar County and Amarillo,...

 

 

 

 

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