MASH Implementation Timeline. Ing. Juan Carlos Rivera Supervisor, División de Proyectos de Seguridad Vial

Transcription

1 MASH Implementation Timeline Ing. Juan Carlos Rivera Supervisor, División de Proyectos de Seguridad Vial

2 MASH Agenda Differences between NCHRP 350 and MASH Joint Implementation Agreement for MASH Puerto Rico Standard Drawings Changes with MASH Future revisions to Standard Drawings

3 What is MASH? Manual Assessing for Safety Hardware (MASH) Original Version 2009 Actual Version 2016 New criteria for crash testing safety hardware Supersede NCHRP 350

4 Evolution 4

5 NCHRP 350 VS MASH Pickup truck increases from 4,400 lbs. to 5,000 lbs. Small car increases from 1,800 lbs. to 2,420 lbs.

6 Joint Implementation Agreement for MASH MEMORANDUM FHWA January 7, 2016 SAFETY HARDWARE TO BE IN COMPLIANCE WITH MASH 1 W-Beam and Cast in Place Concrete Barriers 2 W-Beam End Terminals 3 4 Cable Barriers, End Terminals for Cable Barriers, Crash Cushions Bridge rails, transitions, other longitudinal barriers, other terminals, sign supports, other breakaway hardware

7 Joint Implementation Agreement for MASH COMPLIANCE DATES 1 W-Beam and Cast in Place Concrete Barriers 2 W-Beam Terminals June 30, Cable Barriers, Cable Barrier Terminals, and Crash Cushions December 31, Bridge rails, transitions, other longitudinal barriers, terminals, sign supports, breakaway hardware December 31, 2019 December 31, 2017

8 Puerto Rico Standard Drawings Metal Barrier Family Current Version December 2017

9 METAL BARRIER STANDARD DRAWINGS Principal changes FORMAT FIRST SHEET INDEX AND NOTES

10 METAL BARRIER STANDARD DRAWINGS W- BEAM GUARDRAIL INSTALLATION AND MATERIALS HEIGHT MID-SPAN SPLICE GAUGE OFFSET FROM HAZARD POST SPACING NEW AND REVISED DETAILS

11 2. HEIGHT MID-SPAN Changes: 1- Mid-span splice 2- Height of element

12 APPROVED LIST OF BLOCKOUTS 2. TYPES OF PANELS

13 Changes: 1- Transition from current height to new height 13

14 Changes: 1- Elevation details with new offsets

15 2. PAVED AREAS Changes: 1- Normal hazard offset 1m 2- Installation on paved areas 3- Hazard offset 0.15m with deep post 3. DEEP POST 0.15 M

16 1. NEW LAYOUT DEEP POST: 8 Changes: 1- New layout on concrete slab post

17 INSTALLATION ON CONCRETE SLAB

18 1. WOOD POST FOR LONG SPAN SYSTEM Changes: 1- Alternative for long span system

19 Changes: 1- Installation layout on median

20 Changes: 1- Maintenance opening detail

21 Changes: 1- New terminal type MA installation

22 Thrie beam transition section Type II Speed 45mph 5 2. GAUGE Changes: 1- Two types of concreteguardrail transitions 6 2- Different types of gauge 3- Two types of post 4- New transition panel for 31 height 5- Identification of pay item limit 6- Post spacing

23 Thrie beam transition section Type II Speed < 45mph 2. GAUGE Changes: 1- Two types of concreteguardrail transitions 2- Different types of gauge 3- New transition panel for 31 height 4- Identification of pay item limit 5- Post spacing

24 Changes: 1- New transition module for Speed < 45mph

25 Median transition Changes: 1- Construction on median barrier 2- Two types of post 3- Different types of gauges 4- Post spacing 5- Nested element 6- Transition panel to 31 height 7- Blockouts widht

26 CONCRETE BARRIER STANDARD DRAWINGS FORMAT FIRST SHEET INDEX AND NOTES NEW DETAILS SINGLE SLOPE CONCRETE BARRIER TRANSITION DETAIL (F SHAPE TO SINGLE SLOPE) SHORT END SECTION REFLECTORS DETAILS UTILITY POLE COVER OVERHEAD SIGN SUPPORT PROTECTION

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28 Changes: 1- Concrete barrier reflector panels

29 Changes: 1- Single slope configuration

30 Changes: 1- Transition from single slope to F shape

31 Changes: 1- New short end section for speed < 35mph

32 Changes: 1- Utility pole cover option

33 Changes: 1- New overhead sign support protection (height difference)

34 Joint Implementation Agreement for MASH COMPLIANCE DATES OK 1 W-Beam and Cast in Place Concrete Barriers In Progress 2 W-Beam Terminals June 30, Cable Barriers, Cable Barrier Terminals, and Crash Cushions December 31, Bridge rails, transitions, other longitudinal barriers, terminals, sign supports, breakaway hardware December 31, 2019 December 31, 2017

35 MASH Implementation Timeline Ing. Juan Carlos Rivera Supervisor, División de Proyectos de Seguridad Vial