Construction Costs and Safety Impacts of Work Zone Traffic Control Strategies. Volume I: Final Report

DTFH61-86-C-00064Research was performed to determine total costs (construction and road user costs) and safety impacts associated with traffic control through work zones on rural four-lane, divided highways using single lane closure (SLC) versus two-lane, two-way traffic operations (TLTWO). An informational guide for use in selecting cost-effective traffic control strategies for proposed construction projects was also prepared. Construction data were collected from 51 construction projects in 11 States, and traffic capacity delay studies were conducted at 25 projects in 10 States. In all, construction projects were studied in 16 different states. A total of seven types of construction projects were analyzed for the two traffic control alternatives. The type of construction was found to be the most important aspect affecting the selection of the most cost-effective traffic control strategy. The average daily traffic for the projects ranged from approximately 10,000 to 30,000. For the projects studied, there were no significant differences in accident rates between the two traffic control alternatives. Guidelines are presented for selection of SLC versus TLTWO, including a simplified procedure to estimate road user costs for SLC and TLTWO traffic control strategies. This final report is the first volume of this two-volume series. The second volume is the informational guide (Publication No. FHWA-RD-89-210

Molecular mechanisms of cell death: recommendations of the Nomenclature Committee on Cell Death 2018.

Over the past decade, the Nomenclature Committee on Cell Death (NCCD) has formulated guidelines for the definition and interpretation of cell death from morphological, biochemical, and functional perspectives. Since the field continues to expand and novel mechanisms that orchestrate multiple cell death pathways are unveiled, we propose an updated classification of cell death subroutines focusing on mechanistic and essential (as opposed to correlative and dispensable) aspects of the process. As we provide molecularly oriented definitions of terms including intrinsic apoptosis, extrinsic apoptosis, mitochondrial permeability transition (MPT)-driven necrosis, necroptosis, ferroptosis, pyroptosis, parthanatos, entotic cell death, NETotic cell death, lysosome-dependent cell death, autophagy-dependent cell death, immunogenic cell death, cellular senescence, and mitotic catastrophe, we discuss the utility of neologisms that refer to highly specialized instances of these processes. The mission of the NCCD is to provide a widely accepted nomenclature on cell death in support of the continued development of the field

A study of acceleration noise as a measurement of the quality of freeway operation

Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to [email protected], referencing the URI of the item.Not availabl

Human factors requirements for real-time motorist information displays. Volume 3: summary of systems in the United States. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.Mode of access: Internet.Author corporate affiliation: Texas Transportation Institute, College StationReport covers the period June 1974-Feb 1978Subject code: CCDSubject code: CISubject code: IEBSubject code: PMHF*C

Human factors requirements for real-time motorist information displays. Volume 2: state-of-the-art: messages and displays in freeway corridors. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.Mode of access: Internet.Author corporate affiliation: Texas Transportation Institute, College StationReport covers the period June 1974-Feb 1978Subject code: CCDSubject code: CISubject code: IEBSubject code: PMHF*CISubject code: YC

Traffic management for middle lane maintenance on urban freeways. Interim report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, AustinMode of access: Internet.Author corporate affiliation: Texas Transportation Institute, College StationReport covers the period Sept 1977-March 1980Subject code: CCDSubject code: CDESubject code: CDNCSubject code: H

Selection of work zone channelizing devices using the value engineering approach. Interim report.

Texas State Department of Highways and Public Transportation, AustinMode of access: Internet.Author corporate affiliation: Texas Transportation Institute, College StationReport covers the period Sept 1981 - Jan 1984Subject code: CDCLSubject code: CDNCSubject code: HBE

Evaluation of traffic control plans at reconstruction sites. Final report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, AustinMode of access: Internet.Author corporate affiliation: Texas Transportation Institute, College StationReport covers the period Sept 1981 - Jan 1986Subject code: CDNCSubject code: HBE

Traffic capacity through work zones on urban freeways. Interim report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, AustinMode of access: Internet.Author corporate affiliation: Texas Transportation Institute, College StationReport covers the period Sept 1977-April 1977Subject code: CCDSubject code: CDNCSubject code: G