Our Trucks 7/31/2009. Our Gas Gauge on Sunday. Developing a Risk Management Plan for your Community. Truck Risk Management

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1 Truck Risk Management Gary Johnson and Richard J. Hauer Our Trucks University of Minnesota and University of Wisconsin-Stevens Point Our Gas Gauge on Sunday Pi Prioritizing iti i the usual suspects and inventorying the resource 1

2 Critical Survey Questions to Ask What to look at When to look How often to look How to Survey Level of complexity Get what you pay for Predictable and Preventable Results? How to survey What s a vector? 1978 Dodge Ram Charger To carry (i.e., a mode of transportation) A quantity completely specified by a magnitude and direction (Math) Vector Supplemental Inventory (aka Windshield Survey) An organism that carries pathogens from one host to another (Pathology) Potential VSS Miss aka CSI VSI Sometimes very easy to observe Thanks to Jacob Ryg 2

3 1/3 sound wood Or 1to6inch rule More Urgent Tree Size: Large Trees >16? Less Urgent Defects: visible signs of potential to fail Targets People Utilities Buildings Cars Playground etc. (what s the worst that can happen) Ques to Que in on: Has Construction Occurred Grade Change (Fill and Removal) Soil Compaction ph alteration Root Severing Trunk and Branch Wounding Hydrology Changes Hydrology and Changes 3

4 Weather: Species Response to Moisture Stress and/or Drought Sunscald Damage to Trees Frozen Water: Ice Storms Why did these trees fail during an ice storm? How Common Spruce (not a palm) Tree in Crookston, MN For the Tree or too the Tree? Tree Biomechanics and the Tree Dance Why Did This Tree Fail 4

5 What Caused This This is not normal Seasonal needle drop Everyyearus ithappensus Storm Damage Preparedness Developing a risk rating map Now is not the time to start planning! Now is the time for recovery and returning order An Integrated Approach What we Know From Tree Risk Management: 1) Divide the community into tree risk zones 2) Tree failure is often predictable and preventable 5

6 Prioritizing Levels of Risk Some need immediate attention Some placed on the back burner Some regarded as acceptable, e.g., What is a reasonable management protocol Pot Holes Uneven Sidewalks Bridges Innovations in Arboriculture Innovations in Hot Tubs One Risk Rating System Risk Assessment Guidelines Low = No defect or structural integrity not impacted Medium = Defect present, but action not warranted High = Failure likely action needed 6

7 Treatment Options: Treat the Tree Determine when actions need to be taken Treatment Options: Close the site [often not practical in urban settings] Modern Regression in Arboriculture Treatment Options: Basal Pruning Gone Bad Basal Prune 7

8 Developing a Reasonable Management Protocol 1) Mitigation: activities that reduce the effects of disasters The Disaster Cycle 2) Preparedness: planning a response prior to a disaster 3) Response: activities during a disaster to minimize hazards in effective, efficient, and equitable ways 4) Recovery: returning to normal following a disaster Disaster Cycle: Mitigation Tree Selection and Placement Tree Establishment Tree Maintenance Regular Tree Risk Assessment Disaster Cycle: Preparedness Staff Liaison/POC: knows ICS and tree damage Tree Emergency Response Plan: guide before and after storm (prevention, clean-up, regulations, salvage/repair, replanting, mobilization agreements for people and equipment) Plan Coordination: assign responsibility, avoid conflicts Update Plan: periodic evaluation (annually), contracts, contacts, and changes Provide Training: what to do, who does it, when to do it Disaster Cycle: Response Locate and Consult Plans (Emergency, Debris Removal, and Contact Lists) Identify Live Electric Wires (in, on, or under trees) Implement Response Phase Triage Response I Debris clearance Response II Debris removal and disposal Disaster Cycle: Response: Phase I Debris clearance Clear priority traffic lanes and culverts Push debris to the side Clear at least one lane ASAP Clear major walkways 8

9 Disaster Cycle: Response: Phase II Debris removal and disposal Food and Shelter Establish routes and methods before the disaster or try adopting routes Use staging areas beg, borrow, steal Debris removal often most difficult Disaster Cycle: Response: Communication Basic Point: actively manage information Set up: clear communication channels emergency agencies and personnel Establish and publicize: a phone number and staff person for public contact Media: Work with the media early and often Deliver: important messages to the community Disaster Cycle: Recovery Tree by Tree Assessment for Hazards Prioritize Repair (tree data, location, other) Update Tree Inventory Continue to Keep Records for Assistance keep track of date, personnel, job, equipment, location, and hours. Consult FEMA forms and requirements ( Survey of Immediate Threats Determine Priority 1 Removal (e.g., uprooted, split in half, undermined) Determine Priority 1 Pruning (e.g., >= 2 hanging, broken, or cracked) Targets (e.g., building, sidewalk, electric wire, road, or other important structure) Hire professionals Standards (ANSI A300) Verify before you pay Preventing or Minimizing Risks 9