Winter Service Plan 2024-25 - v1 - Winter service planning

Sep 18, 2026

Uploaded by Hazel

Winter Service Plan 2024-25 sets out objectives, scope, and operational approach for maintaining roads and supporting transport resilience during the winter risk period. It outlines the winter risk window, route coverage across Suffolk P1 & P2 routes, and the treatment matrix covering precautionary actions and specific responses for snow, freezing rain, thin ice, and compacted snow/ice. It also covers decision-making roles, timing considerations, working with others, volunteers, grit bins, training, and notes addressing spread-rate modifications and related factors.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages44

Reading Time1 h 51 min

AccessFree to download

Introduction

Purpose of Winter Service Plan

Summary of what will be done

Winter risk period

Roads

Resilient Network Map

Timing and Operational Considerations

Winter service treatment matrices

Precautionary Treatment Matrix (P1 Routes)

Precautionary spread rates

Treatments during snow or freezing rain

Emergency situation – salt shortage

Decision making

Role of the Countywide Decision Maker

Role of Support Decision Makers

Information Systems

Weather Forecasts and Thermal Maps

Winter Season 2024-2025 Winter Service Plan FINAL v1 WINTER SERVICE PLAN 2024-25 ............................................................................ 4 Introduction ............................................................................................................. 4 Purpose of Winter Service Plan .............................................................................. 5 Summary of what will be done ................................................................................ 6 Winter risk period ................................................................................................ 6 Roads .................................................................................................................. 6 Resilient Network Map .............................................................................................. 10 Impact of PANDEMICS ......................................................................................... 12 Timing and Operational Considerations ................................................................ 13 SUFFOLK P1 & P2 ROUTE COVERAGE ................................................................ 15 Footways............................................................................................................... 16 Cycle facilities ....................................................................................................... 16 Bridges .................................................................................................................. 16 Level crossings ..................................................................................................... 16 Guided Busways ................................................................................................... 16 Other features ....................................................................................................... 17 Working with others .............................................................................................. 17 NOTES REGARDING POTENTIAL SPREAD RATE MODIFICATIONS .................. 18 Note 1- ‘Rounding’ ............................................................................................... 18 Note 2-Higher spread rates ................................................................................. 18 Note 3-Very low temperatures ............................................................................ 18 Note 4-Salt moisture content............................................................................... 19 Note 5-Porous and negatively textured surfaces ................................................ 19 Note 6-Bridge decks ........................................................................................... 19 Note 7-Traffic levels ............................................................................................ 20 Note 8-Precipitation ............................................................................................ 20 Note 9-Water film thickness ................................................................................ 20 Note 10-Wind speed and direction ...................................................................... 22 Note 11-Residual salt.......................................................................................... 22 Note 12-Spreader capability................................................................................ 22 WINTER SERVICE TREATMENT MATRICES ........................................................ 23 Precautionary Treatment Matrix-Applicable to P1 Routes................................... 23 Precautionary Spread Rates – Normal winter conditions ...................................... 25 Precautionary Spread Rates – Prior to snow or freezing rain ............................... 27 Treatments During Snow or Freezing Rain ................................................

FAQs

What is the purpose of the Winter Service Plan 2024-25?

It defines the objectives and scope for winter road maintenance, including what will be done and how operations will be managed during the winter risk period.

Which routes are covered by the plan?

The plan specifies coverage for SUFFOLK P1 & P2 route areas, including related features such as roads, footways, cycle facilities, bridges, level crossings, and guided busways.

How does the plan determine winter treatments and spread rates?

It uses winter service treatment matrices that set precautionary and reactive treatments for conditions like snow, freezing rain, thin ice, and compacted snow/ice, supported by notes on spread-rate modification factors.

Sep 18, 2026

Uploaded by Hazel