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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>AN ANALYSIS OF ULTIMATE PERFORMANCE MEASURES TO DETERMINE TOTAL PROJECT IMPACT. FIRST ANALYTIC STUDY</title>
      <link>https://trid.trb.org/View/61538</link>
      <description><![CDATA[This report examines fatal accident, fatality and alcohol involvment trends in Hennepin County during ASAP and pre-ASAP or baseline years.  In addition, it compares those trends with trends in surrounding communities and the remainder of the state during the same time period.  The findings of this report are reasonably encouraging.  They demonstrate statistically significant decreases in most Hennepin County traffic fatality categories and in alcohol involvment rates concurrent with project activities.  When driver fatalities in Hennepin County were examined against other variables, the data revealed that: The decrease in driver fatalities concurrent project activities occurred primarily during the first half of each year (1972-1975). The largest reduction was for fatally injured drivers in the 18-20 age category.  Most of the reduction in driver fatalities during the ASAP period involved multivehicle accidents.  During 1970-1971, there was an average of 34.0 drivers killed in multi-vehicle accidents.  This decreased to an average of 23.3 drivers in 1972-1975, a statistically significant drop.  The reductions in driver fatalities during the ASAP years was statistically significant for the weekend, not the weekday.  The average number of driver fatalities during the baseline weekend was 27.3 versus 22.5 for the weekend ASAP period.  Alcohol involvement in driver fatalities has fallen from 63.0% in 1972 to just 40.7% in 1975 in Hennepin County but has risen or remained unchanged in the counties adjoining Hennepin and in the remainder of the State.  Finally, when driver fatality alcohol involvment in Hennepin County is examined relative to time of day and day of week, the data for the most recent years of ASAP activity--1974 through 1975--show large and significant reductions from baseline rates during the weekend evening hours.]]></description>
      <pubDate>Mon, 04 Aug 2003 00:00:00 GMT</pubDate>
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      <title>COLD WEATHER TRANSIT TECHNOLOGY PROGRAM. VOLUME 12--STUDY OF LASER DEICING</title>
      <link>https://trid.trb.org/View/205690</link>
      <description><![CDATA[This report is one of a series of reports associated with the Cold Weather Transit Technology (CWTT) program of the Urban Mass Transportation Administration. The CWTT program is a project to improve transit operations in severe ice, snow, and cold environments. The program was initially directed to solutions for automated guideway transit system cold weather problems in support of the downtown people mover program (DPM). However, curtailment of the DPM program in November 1980, caused UMTA to redirect the focus of the program to obtain solutions for cold weather problems of existing transit systems.  Therefore, the objective of the CWTT program is to develop new and more effective solutions for cold weather problems experienced by urban mass transportation systems.  This report presents theoretical and experimental results regarding the laser melting of ice from transit rails.  The objective of this study is to present estimates of the energy requirements to either melt ice from transit rails or establish a thin melt zone at the ice-transit rail interface.  The process radiates electromagnetic energy at laser wavelengths to and through an ice layer on a metal substrate and which is absorbed by both the ice and substrate.  The results are used to estimate the equipment requirements necessary for implementation of laser deicing techniques.]]></description>
      <pubDate>Tue, 30 Oct 1984 00:00:00 GMT</pubDate>
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      <title>EVALUATION CRITERIA FOR EMERGENCY RESPONSE PLANS IN RADIOLOGICAL TRANSPORTATION</title>
      <link>https://trid.trb.org/View/165876</link>
      <description><![CDATA[This paper identifies a set of general criteria which can be used as guides for evaluating emergency response plans prepared in connection with the transportation of radiological materials.  The development of criteria takes the form of examining the meaning and role of emergency plans in general, reviewing the process as it is used in connection with natural disasters and other nonnuclear disasters, and explicitly considering unique aspects of the radiological transportation setting.  Eight areas of critical importance for such response plans are isolated: notification procedures; accident assessment; public information; protection of the public at risk; other protective responses; radiological exposure control; responsibility for planning and operations; and emergency response training and exercises.]]></description>
      <pubDate>Wed, 15 Apr 1981 00:00:00 GMT</pubDate>
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      <title>MATCHING CASE METHODOLOGY FOR MEASURING RESTRAINT EFFECTIVENESS</title>
      <link>https://trid.trb.org/View/76329</link>
      <description><![CDATA[The importance of the matching case methodology is that it utilizes field accident data exclusively -- accidents in which a specific restraint was used are compared to accidents of similar injury potential but whose occupants did not use the restraint being evaluated.  The authors cite the Air Cushion Restraint System (ACRS) as an example of the matching case methodology's utility.  ACRS effectiveness is about 18% (CI = - 23% to + 56%) for injured occupants at AIS levels equal to or greater than AIS 3, in deployment accidents.  It is believed that this is the best, currently available estimate of ACRS field effectiveness.]]></description>
      <pubDate>Fri, 29 Dec 1978 00:00:00 GMT</pubDate>
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