March, 2017 Khoa Nguyen, MS, P.E. Director, Office of Tech. Services http://www.fhwa.dot.gov/everydaycounts
EVERY DAY COUNTS Launched in October 2010 Designed to: • Shorten project development & delivery • Enhance the safety and performance of our highways and bridges • Improve environmental sustainability
EVERY DAY COUNTS SAFETY INITIATIVES Pedestrian & Bicycle Safety • Safe Transportation for Every Pedestrian (STEP) Intersection Safety • Intersection Control Evaluation (ICE) • Roundabouts & Mini Roundabouts • Restricted Crossing U-Turn Intersection (RCUT) Roadway Departure • Safety Edge • High Friction Surface Treatments Data Driven Safety Analysis
FLORIDA FATALITY DATA Florida * FARS ARF (preliminary) FARS final data - 2006 through 2014
DISTRICT 7 FATALITY DATA
SAFE TRANSPORTATION FOR EVERY PEDESTRIAN (STEP) Road Diets • Reduce speeds & No. of lanes • Create space for ped. facilities. Pedestrian hybrid beacons HAWK • provide positive stop control Road Diet Pedestrian refuge islands • Shorten crossing distance • Elderly & limited mobility pedestrians Refuge Island Raised Crosswalk Raised crosswalks • reduce vehicle speeds. Florida: Visibility enhancements • Institutionalized • Detect ped. particularly at night. Crosswalk Visibility
INTERSECTION CONTROL EVALUATION (ICE) Benefits : • Consider all available Intersection Controls beyond Traditional Controls • Select an optimal control for a specific site and problem. Florida : Adopted and is in the process formalizing this concept. Resources : • Caltrans ICE Policy Directive • Minnesota DOT ICE Tech. Memo STOP SIGNAL DDI RCUT ROUNDABOUT
ROUNDABOUT Benefits: • Reduce conflict points:32 to 8 for vehicles & 16 to 8 for pedestrians • Benefit Cost Ratio as high as 15 • Reduce Crashes by 70% - 90% Florida: • Intersection Design Guide • 3-step screening tool • Plans Preparation Manual (PPM) • Constructed 22 with 16 in design GAINES ST. TALLAHASSEE
RESTRICTED CROSSING U-TURN INTERSECTION (RCUT) Benefits • Reduce conflict points : 32 to 18 • Reduce Serious Injuries crashes by 42% to 70% • 30% increase in throughput and 40% reduction travel time Florida: • Early Phase of the implementation • FHWA-HRT-09-059
SAFETY EDGE Drop-off Edge Shoe @ LTAP Center (UF) Drift off – Over Correction - Collision Benefits • Simple 30 degrees edge pavement • Easy and inexpensive to install • Eliminate Edge Drop-off • Effective Lane Departure Recovery • Pavement edge Density & Stability Florida • Only a few counties • “ Greenbook ” • Available shoe at the LTAP center
HIGH FRICTION SURFACE TREATMENT Manual Automated Aggregate Benefits • Increase friction by 87% • High Benefit Cost Ratio of 40 • Reduce Crashes by 30% to 80% Florida • A Study by Texas A&M Transportation Institute (TTI) • HFST Guidelines: Project Selection, Material & Construction • Part of Safety Tool Box w/Specifications - Sec. 333 Thurston County, WA • Installed at 57 locations in Florida.
WHY? DATA DRIVEN SAFETY ANALYSIS (DDSA) = VS . LIMITED BIG ISSUE RESOURCE DDSA introduces two tools: Predictive analysis: Benefits: • Crash, Frequency, Features & Volume • Decision based on safety performance • Existing Safety Performance • Better Targeted Safety Investments • Safety performance of various alternatives • Effectively Reduce Fatalities and Serious • Proposed Safety Performance. Injuries Systemic analysis: Florida: • Severe crash locations are random • Early Stage of integrating DDSA into the • High-risk features remain consistent HSIP Program • Identify high-risk features across a network • Low-cost treatment across network.
WANT TO KNOW MORE? Florida T2 Center (UF) Improving FL’s Intersection Safety & Decreasing Roadway Departures Webinar March 28, 2017 9am till noon FDOT & FHWA perspectives Contact: David Page – Florida T2 Center FHWA Roadway Departure & Intersection Safety Workshop May 9-10, 2017 in Gainesville @ the Florida T2 Center Tuesday noon - 4pm & Wednesday 8am - noon FHWA roadway departure & intersection subject matter experts Contact: Kevin Burgess – FHWA Florida Division
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