00602741

Component

http://onlinepubs.trb.org...trr/1990/1266/1266-002.pdf

https://scholar.google.co...ason&publication_year=1990

The accuracy of drug tests for transit and other transportation workers is an important subject. Concepts of accuracy that are most relevant are applied to laboratory proficiency and transportation worker drug-usage data, and accuracy levels that could occur in transit drug testing programs are estimated. Seemingly accurate tests for abused drugs can sometimes be inaccurate to a disturbingly high degree. Therefore, a methodology by which decision makers can correctly set desired accuracy standards for their organizations is suggested to avoid potential inaccuracies.

This paper appears in Transportation Research Record No. 1266, Urban Public Transportation Research 1990. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01411029

Allen, Melissa J

p. 10-22

1990

Transportation Research Record

0309050189

Figures (2) ; References (31) ; Tables (2)

Accuracy; Drug tests; Probability; Transit personnel

Probabilistic analysis

Administration and Management; Data and Information Technology; Highways; Public Transportation

TRIS, TRB

Dec 31 1990 12:00AM

• ALTERNATIVE FORMS OF MOTIVE POWER FOR SUBURBAN RAIL RAPID TRANSIT
• BENEFITS TO BUS OPERATORS OF INTRODUCING A COMPREHENSIVE LIFE CYCLE COSTING SYSTEM: A PRACTICAL APPLICATION
• BUS MAINTENANCE PERFORMANCE: FINDINGS AND DIRECTION FOR RESEARCH
• BUS SERVICE TIMES AND CAPACITIES IN MANHATTAN
• CAPITAL PROJECT PRIORITY SETTING AT THE SOUTHEASTERN PENNSYLVANIA TRANSPORTATION AUTHORITY
• CASE STUDY IN LAND USE AND PARKING REGULATIONS IN SUPPORT OF CAMPUS TRANSIT SERVICES: DEVELOPMENT OF CY-RIDE IN AMES, IOWA
• CONCEPTUAL MODEL OF THE FIXED-GUIDEWAY DECISION PROCESS
• DRIVE FOR EXCELLENCE: HOW TO INCREASE TRANSIT RIDERSHIP
• EMPLOYEE ASSISTANCE PROGRAMS IN THE PUBLIC TRANSIT INDUSTRY: EXPERIENCE OF CONNECTICUT TRANSIT AND SOME CONCERNS FOR THE FUTURE
• EVALUATING A LARGE NUMBER OF STATION AND ALIGNMENT ALTERNATIVES
• FINANCIAL CAPACITY ANALYSIS OF THE SAN FRANCISCO BAY AREA RAIL EXTENSION PROGRAM
• FINANCING PEOPLE MOVERS: THE CASE OF ATLANTIC CITY
• IMPACT OF LABOR CONTRACT PROVISIONS ON TRANSIT OPERATOR PRODUCTIVITY
• IMPROVING THE EFFECTS OF ELEVATED TRANSIT STATIONS ON NEIGHBORHOODS
• LINDENWOLD RAIL LINE AND NEW JERSEY TRANSIT BUSES: A COMPARISON
• MARKET-BASED APPROACH TO TRANSIT FACILITY DESIGN
• MODERNIZATION OF SEPTA'S NORRISTOWN HIGH-SPEED LINE
• NET COSTS OF PEAK AND OFFPEAK TRANSIT TRIPS TAKEN NATIONWIDE BY MODE
• PLANNING A NEW VEHICLE AND ROADWAY SYSTEM FOR DEVELOPING COUNTRIES
• PLANNING AND IMPLEMENTING BUS ROUTE CHANGES TO SERVE NEW RAPID TRANSIT LINES: THE ARCHER AVENUE EXPERIENCE IN NEW YORK
• PUBLIC TRANSPORTATION PROBLEMS AND SOLUTIONS IN THE HISTORICAL CENTER OF QUITO
• SCHEDULING TRANSIT EXTRABOARD PERSONNEL
• SITE SELECTION AND SIZING OF AN LRV STORAGE YARD
• THE RIGHT-OF-WAY AGREEMENT: NINE-JURISDICTION PLAN FOR TOMORROW
• TOWARD A PASSENGER-ORIENTED MODEL OF SUBWAY PERFORMANCE (WITH DISCUSSION AND CLOSURE)
• TRANSIT CAPITAL PLANNING IN THE SAN FRANCISCO BAY AREA
• USING VALUE ENHANCEMENT TO FINANCE PEOPLE MOVERS IN SUBURBAN ACTIVITY CENTERS
• VEHICLE REPLACEMENT STRATEGIES: OPPORTUNITIES FOR EFFICIENCIES
• WORK STANDARDS: THEIR USE AND DEVELOPMENT USING A MAINTENANCE MANAGEMENT INFORMATION SYSTEM