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Arthur Handman Executive Director, Greater Hartford Transit District

WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS. Roadway and Railway Transit Perspective. Arthur Handman Executive Director, Greater Hartford Transit District. OVERVIEW. Weather Information Needs / Requirements Results. PRECIPITATION THUNDERSTORMS / LIGHTNING TEMPERATURES VISIBILITY

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Arthur Handman Executive Director, Greater Hartford Transit District

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  1. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Roadway and Railway Transit Perspective Arthur Handman Executive Director, Greater Hartford Transit District

  2. OVERVIEW Weather Information Needs / Requirements Results • PRECIPITATION • THUNDERSTORMS / LIGHTNING • TEMPERATURES • VISIBILITY • WINDS • POLLUTION

  3. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Precipitation • Frozen Precipitation - General ConditionAction*Lead-time • Frozen Precipitation Maintain safe Operator's transportation. Discretion • Freezing Rain/Icing Clear tracks and 2-hrs power rails/wires. • Inclement weather Bus schedules 1-2 hrs leading to early altered. release of commuters • Snowfall/Drifting snow Mobilize staff. 24 hrs (optimum) Stage equipment. 8-hrs (minimum) *Accumulation and lead-time affect the decision process

  4. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Precipitation • Frozen Precipitation - Specific Condition(Preparation)Action*Lead-time • Snowfall 0-2" Mobilize staff. Stage 24-hrs equipment. 8-hrs min. • Snowfall 2-6" Initiate appropriate action 12-hrs plan. • Snowfall 6-8" Initiate appropriate action 12-hrs plan. • Snowfall > 8" Initiate appropriate action 12-hrs plan. *Accumulation and lead-time affect the decision process

  5. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Precipitation • Frozen Precipitation - Specific Condition(Execution)Action*Lead-time • Snowfall 0-2" Mobilize staff. Stage 24-hrs equipment. Maintain Ops. 8-hrs min. • Snowfall 2-6" Maintain Ops. HOV Real-time. restrictions removed. • Snowfall 6-8" Maintain Ops. Bus service Real-time. on snow emergency routes. • Snowfall > 8" Reduced operations. Snow Real-time. emergency routes. Suspend operations. *Accumulation and lead-time affect the decision process

  6. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Precipitation • Liquid Precipitation - General ConditionActionLead-time • Heavy showers Speed reductions Operator's based on precipitation. Discretion • Heavy precipitation Maintenance checks for Operator's roadbed washout. Discretion • Flooding Warn bus drivers. Change Minimal routes. Adjust schedules.

  7. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Precipitation • Liquid Precipitation - Specific ConditionActionLead-time • Flooding Alter or delay rail schedule. 1-hr Check pumps in flood prone areas (railway).

  8. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Thunderstorms / Lightning • General ConditionActionLead-time • Severe Thunderstorm Delay routes. Adjust Operator's schedules. Discretion • Lightning Cease refueling operations. Operator's Discretion

  9. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Temperatures • Air Temperature ConditionActionLead-time > 85 deg F Catenary problems Operator’s in older railway Discretion installations--reduce speed > 85 deg F Monitor personnel and 6-12hrs equipment stress, crew comfort and safety. < 32 deg F Monitor personnel and 6-12hrs equipment stress, crew comfort and safety. < 40 deg F Transport homeless to 12-24hrs shelters.

  10. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Temperatures • Pavement Temperature - Precipitation Imminent ConditionAction > 32 deg F No maintenance action. 30-32 deg F & wet Apply liquid or solid chemical. 25-30 deg F & dry Apply liquid or pre-wetted chemical. 25-30 deg F & wet Apply liquid or solid chemical. 15-25 deg F Apply pre-wetted solid chemical. < 15 deg F Apply abrasives. Plow as needed.

  11. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Visibility • Type of obscuration to vision (fog, smoke, haze, glare) is not important. ConditionActionLead-time <1 mile Rail speed reductions. Operator's (depends on speed and Discretion length of train). < 1/4 mile Bus speed reductions. Operator's Discretion < 1 mile Initiate alerts/warnings Operator's (VMS, etc). Discretion

  12. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Winds • General ConditionActionLead-time Blown debris Clear routes. Delay Operator's operations. Discretion 60-65 mph Bus operations Operator's suspended. Discretion

  13. WEATHER INFORMATION NEEDS / REQUIREMENTS RESULTS Pollution • General ConditionActionLead-time Unhealthy Ozone Action Bus fare reduction. 24-hrs Days/Air Quality Indices

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