Safety Evaluation of Ultraviolet-Activated Fluorescent Roadway, Delineation: Preliminary Field Experiment

DTFH61-95-R-00093A new technology is being developed in Sweden to improve visibility for nighttime driving. This technology consists of Ultraviolet (UV) headlights in combination with fluorescent traffic control devices. Vehicles will be equipped with headlamps that supply UV radiation in a high-beam pattern, along with conventional halogen or metal halide low-beam headlamps. UV light is not visible to the human observer, but after striking certain materials it will cause them to "fluoresce", that is, the UV radiation is converted to longer wavelength, visible light. UV-activated fluorescent materials can be incorporated into roadway delineation, such as pavement markings. A field test was conducted to examine the effectiveness of using UV headlights, with fluorescent pavement markings, in increasing the visibility of roadway delineation. This included measurement of both a visibility distance and subjective ratings. The study examined drivers opinions of the UV light as well as measured distance and general visibility of the fluorescent roadway markings as compared to standard roadway markings. Results showed that UV headlights provided a significant increase in UV-activated fluorescent pavement marking delineation visibility

Innovative traffic control technology and practice in Europe.

Federal Highway Administration, Office of International Programs, Washington, D.C.Mode of access: Internet.Author corporate affiliation: American Trade Initiatives, Alexandria, Va.Subject code: CICSubject code: EMSubject code: FGFSubject code: HBSubject code: HBECSubject code: HBEESubject code: IEBSubject code: KNSubject code: FSSubject code: PMMOSubject code: WOHSubject code: WW*I

Synthesis of Safety Research Related to Traffic Control and Roadway Elements \u2013 Volume 1

DOT-FH-1l-9625This synthesis is published in two volumes. Each of the 17 safety research subject areas is presented as an individual chapter. Subject areas included in Volume 1 are: roadway cross section and alinement; pavement surfaces; roadside features; access control and driveways; intersections; interchanges; one-way streets and reversible lanes; priority for high occupancy vehicles; and on-street parking. Volume 2 subject areas include: construction and maintenance zones; adverse environmental operations; roadway lighting; railroad-highway grade crossings; commercial vehicles; bicycle ways; pedestrian ways; and speed zoning and control. An overall 17-chapter subject index is included in both volumes of the synthesis for finding specific areas of interest

Integrated Proteogenomic Characterization across Major Histological Types of Pediatric Brain Cancer

We report a comprehensive proteogenomics analysis, including whole-genome sequencing, RNA sequencing, and proteomics and phosphoproteomics profiling, of 218 tumors across 7 histological types of childhood brain cancer: low-grade glioma (n = 93), ependymoma (32), high-grade glioma (25), medulloblastoma (22), ganglioglioma (18), craniopharyngioma (16), and atypical teratoid rhabdoid tumor (12). Proteomics data identify common biological themes that span histological boundaries, suggesting that treatments used for one histological type may be applied effectively to other tumors sharing similar proteomics features. Immune landscape characterization reveals diverse tumor microenvironments across and within diagnoses. Proteomics data further reveal functional effects of somatic mutations and copy number variations (CNVs) not evident in transcriptomics data. Kinase-substrate association and co-expression network analysis identify important biological mechanisms of tumorigenesis. This is the first large-scale proteogenomics analysis across traditional histological boundaries to uncover foundational pediatric brain tumor biology and inform rational treatment selection