Safety Benefits of Permeable Friction Course?

Slides:

Advertisements

Similar presentations

Update on the Drought of 2011 TWCA Mid Year Conference June 16, 2011 Bob Rose, Meteorologist LCRA.

Advertisements

Drought Update; What’s in Store for 2012 LCRA Firm Water Customer Meeting January 26, 2011 Bob Rose, LCRA Chief Meteorologist.

Spring Before-After Studies Recap: we need to define the notation that will be used for performing the two tasks at hand. Let: be the expected number.

Footer Text STATE HIGHWAY 45 SW Carlos Swonke, PG Director of Environmental Affairs TxDOT.

Jim Sherwood, U. S. Federal Highway Administration, Turner Fairbank Highway Research Center, Infrastructure Research and Development Roya Amjadi, U. S.

Reading: Applied Hydrology Sections 14-5, 14-6

Porosity of Permeable Friction Courses (PFC) Brandon Klenzendorf April 28, 2009 CE 397 – Statistics in Water Resources.

Historical Texas Drought Update LCRA Firm Water Customer Meeting October 27, 2011 Bob Rose, LCRA Meteorologist.

Historical Texas Drought Update TAIA El Campo Meeting October 18, 2011 Bob Rose, LCRA Meteorologist.

INTRODUCTION What is Gully Erosion?

Hydrology The flow of water across and through near surface environments.

Anomalous Summer Precipitation over New Mexico during 2006: Natural Variability or Climate Change? Shawn Bennett, Deirdre Kann and Ed Polasko NWS Albuquerque.

Part 2 Some Basic Aspects of CHANNEL HYDRAULICS. The volume of water that passes by any given point along a watercourse is called “Q”, for quantity of.

 An adequate drainage system for the removal of surface and subsurface water is vital for the safety of aircraft and for the long service life of the.

Jefferson High School Compton Creek Research Project UCLA and Los Angeles Waterkeeper Funded by the Environmental Protection Agency.

BACTERIAL CONCENTRATIONS IN BULL CREEK AUSTIN, TEXAS Patrick Sejkora.

Comparing the Storage Efficiencies of the Highland Lakes and the Proposed LCRA-SAWS Project Lower Colorado River Reservoirs Andrew Judd Semester Project.

FLOOD HYDROGRAPHS FOR GCSE GEOGRAPHY.

The Roads Ahead Leroy D. Alloway, Director Community Development.

Estimating Water Demands for Irrigation Districts on the Lower Colorado River David Kracman University of Texas at Austin December 7, 2000.

Capacity-Building Workshop: Climate Change Adaptation and Water Resources in the Caribbean Region John Charlery – University of the West Indies

FLASH FLOOD PREDICTION James McDonald 4/29/08. Introduction - Relevance  90% of all national disasters are weather and flood related  Central Texas.

DEVELOPMENT OF LOCAL DROUGHT TRIGGER LEVELS PREPARED BY THE HILL COUNTRY UNDERGROUND WATER CONSERVATION DISTRICT.

An Analysis of 2000 IH-35 Traffic Composition and Reassignment Solutions Performed by: Manager: Caleb Kraenzel Assistant Manager: Georgia Appleman Webmaster/Analyst:

Patapsco/Back River SWMM Model Part I - Hydrology Maryland Department of the Environment.

Tile Drainage Precision Agriculture Soil 4213 Billie McKean April 27, 2007.

SCIENCE Test 1: Passage 2.

Trends in Iowa Precipitation: Observed and Projected Future Trends Christopher J. Anderson, PhD Scientist, Assistant Director Climate Science Initiative.

Maureen McCann TFFC Workshop December 8, 2010 GIS in Hydrology Through a Broadcast Medium.

Renata Gonçalves Tedeschi Alice Marlene Grimm Universidade Federal do Paraná, Curitiba, Paraná 1. OBJECTIVES 1)To asses the influence of ENSO on the frequency.

Geospatial Analysis of the Big Spring, TX Area. Types of Wastewater Reuse Non-Potable Reuse Watering lawns Industrial cooling Indirect Potable Reuse Aquifer.

A quantification of groundwater seepage during drought and its importance for water quality modeling in the St. Vrain watershed Hannah Chapin Thomas Gerber.

PATRICK SEJKORA NOVEMBER 17, 2009 GIS IN WATER RESOURCES Yellowstone Fires and Their Hydrologic Effects.

Application of Climate Change research in CAP Planning activities Mohammed Mahmoud Colorado River Programs Central Arizona Project.

California’s Experience with HFST 1.  Overview  Challenging Locations  Collision Reduction (State and Local Roads)  Typical Placement and current.

Water Quality Analysis of The Lower Colorado River Paula Kulis CE 394K.1.

Revision presentation. The drainage basin 1.the edge of highland surrounding a river. 2.An area from which all precipitation flows to a single stream.

Public Information Meeting St. George Road - Oak Hill Road Intersection Reconstruction Project.

Trends in Iowa Precipitation: Observed and Projected Future Trends

Good news, driverless vehicles biggest ever traffic safety improvement; Bad news, 30 million deaths by 2050 Leonard Evans President, Science Serving Society.

Learning Outcomes Identify common safety improvement myths.

Pioneer Road Relocation and Reconstruction Project

Highway Safety Manual (HSM) into Safety Processing

Trends in Iowa Precipitation: Observed and Projected Future Trends

Gladewood Bridge Summary: Built in 1920 Crosses the Yellow Creek

Evaluating Harris County’s Road Network

CPCRW Snowmelt 2000 Image Courtesy Bob Huebert / ARSC.

19 States & Mexico Rely on Colorado Water

CLIMATE CHANGE IN TRINIDAD AND TOBAGO Willis Mills.

Hydrologic implications of 20th century warming in the western U.S.

CTDOT Traffic Safety Engineering

HIGHER GEOGRAPHY Hydrosphere - Hydrographs.

Mapping Climate Risks in an Interconnected System

Old Spanish Trail Ramon Olguin.

ENHANCED WINTER ROAD MAINTENANCE WORKSHOP

Introduction to Pavement Design

Warm-up What is the difference between weather and climate?

Highway 169 Bridge Replacement & Pavement Resurfacing

Moving Maryland Toward Zero Deaths

Air Parcel Trajectory Analysis

HSM Applications to Multilane Rural Highways and Urban Suburban Streets Safety and Operational Effects of Geometric Design Features for Two-Lane Rural.

Elaine B. Darby GIS – Fall 2005

Brian McInerney Hydrologist National Weather Service

Ranking of Pavement Preservation Methods and Practices

From Tanker Roll-Over to NFA

Jacob Piske, Eric Peterson, Bill Perry

Urbanization and the Effect on Watershed Hydrology

Acton Extension Update

Walker Street Reconstruction Project 25% Design Public Hearing

The Water Cycle Notes science doodles page.

Presentation transcript:

Safety Benefits of Permeable Friction Course? Statistics in Water Resources Brad Eck April 30, 2009

Permeable Friction Course Safety Benefits of PFC Removes water from the road surface Reduced splash and spray Drainage through the pavement rather than across it Does this result in fewer crashes? Permeable Friction Course

Data Sources Texas Peace Officer’s Crash Report (compiled by TxDOT) Traffic Counts from Capital Area Metropolitan Planning Organization (CAMPO) Rainfall history at Bull Creek & Loop 360 from Lower Colorado River Authority (LCRA)

Near Spicewood Springs Loop 360 Bull Creek Gauging Station Near Spicewood Springs Black –eyed Susan

Annual Crash Statistics – Entire Highway PFC Installed September 2004

Roadway Segment & Surface Condition Most crashes occurred under dry conditions Consistent with statewide analysis PFC section showed more variability PFC Installed

Crashes in Wet Conditions Hypothesis Tests on PFC (north) and Impervious (South) Conclusion: PFC did not help on this roadway F-Test T-Test Test Statistic 0.812 0.54 P-value 0.39 0.30 F-Test T-Test Test Statistic 0.223 0.65 P-value 0.07 0.28

Remaining Work Compare wet/dry classifications with precipitation record at Bull Creek Precipitation Intensity Examine other contributing factors