The Redspot Survey has been running since 1991 and since that time there have been many sites upgraded to alleviate congestion. Below are the top Redspots each Survey since 2002, along with any major works that should have eased the congestion problem.

2008

• Springvale Road / Whitehorse Road, Nunawading
  Railway crossing dropped under the road
• Thompson Road / Western Port Highway, Skye
• Murrumbeena Rd / Neerim Rd, Murrumbeena
• Sunbury Rd / Bulla-Diggers Rest Rd, Bulla
  Additional lanes and signals
• Burke Rd between Monash Fwy and Malvern Rd, Glen Iris
• Chandler Highway between Eastern Freeway and Heidelberg Rd, Alphington / Kew
• Furlong Rd/St Albans Rd, St Albans
• Glenroy Rd between Pascoe Vale Rd and Wheatsheaf Rd, Glenroy
• Park Road / Reserve Road / Tulip Street, Cheltenham
  Traffic lights installed
• Blackburn Road / Chapel Street, Blackburn

2006

• Springvale Road / Whitehorse Road, Nunawading
  Railway crossing dropped under the road
• Park Road / Reserve Road / Tulip Street, Cheltenham
  Traffic lights installed
• Chandler Highway between Eastern Freeway and Heidelberg Rd, Alphington / Kew
• Clyde Road / Enterprise Avenue, Berwick
  Traffic lights installed
• Pascoe Vale Road / Somerton Road, Coolaroo
  Traffic lights installed
• Bentons Road / Nepean Highway, Mount Martha
  Traffic lights installed and intersection upgraded
• Merri Parade / St Georges Road, Northcote
  Traffic lights installed and a major upgrade of the intersection
• Thompsons Road / Western Port Highway, Skye
• Burke Road / Malvern Road / Monash Freeway, Glen Iris
• Blackburn Road / Chapel Street, Blackburn

2004

• Springvale Rd and Whitehorse Rd, Nunawading
  Railway crossing dropped under the road
• Bridgewater Rd and Craigieburn Rd, Craigieburn
  Traffic lights installed
• Kimberley Dr and Maroondah Hwy, Mooroolbark
  Improved right–turn into Fletcher Rd
• Calder Fwy and Tullamarine Fwy, Niddrie
  Major upgrade
• Calder Fwy btw Green Gully Rd and Keilor Park Dr, Keilor/Keilor Park
• Nepean Hwy and Oakbank Rd, Mornington
  Traffic lights installed
• Pound Rd and South Gippsland Hwy, Dandenong South
  Traffic lights funded
• Gorge Rd and McDonalds Rd, South Morang
  Traffic lights installed
• Toorak Rd and Monash Fwy, Kooyong
• Horne St / Vineyard Rd / Mitchells Lane, Sunbury
  Traffic lights installed and Vineyard Road duplicated
• Blackburn Rd and Central Rd, Blackburn
• Wellington Rd btw Springvale Rd and Napoleon Rd, Mulgrave/Rowville
  Widened to 3 lanes between Springvale Road and Stud Road Widened to 2 lanes between Taylors Lane and Napolean Road
• Fitzsimons La and Main Rd, Eltham
  Metering lights installed
• Mitcham Rd and Whitehorse Rd, Mitcham
• Ferntree Gully Rd btw Springvale Rd and Stud Rd, Wheelers Hill/Scoresby Widened between Cootamundra Drive and Jells Road

2002

• Pound Rd / South Gippsland Hwy, Dandenong South
  Traffic lights funded
• Barrymore Rd / Mickleham Rd, Greenvale
  Traffic lights installed
• Springvale Rd / Whitehorse Rd, Nunawading
  Railway crossing dropped under the road
• Middleborough Rd / Whitehorse Rd, Mitcham
  Railway crossing dropped under the road
• Central Av / Point Cook Rd, Altona Meadows
  Line marking changes to allow two lanes through the intersection
• Calder Fwy between Western Ring Road and Sunshine Av, Keilor Park
• Bridgewater Rd / Craigieburn Rd, Craigieburn
  Traffic lights installed
• Station Rd / Western Hwy, Deer Park
  Deer Park Bypass constructed
• Nepean Hwy / Oakbank Rd, Mornington
  Traffic lights installed
• High St / Spring St, Reservoir
• Western Hwy between Caroline Springs Bvd and Western Ring Rd, Caroline Springs, Burnside and Deer Park
  Deer Park Bypass constructed
• Chandler Hwy and Yarra Bvd, Kew
• Calder Fwy and Tullamarine Fwy, Niddrie
  Major upgrade
• Baxter-Tooradin Rd / Fultons Rd, Baxter
  Roundabout installed and boom gates upgraded
• Horne St / Vineyard Rd / Mitchells Lane, Sunbury
  Traffic lights installed and Vineyard Road duplicated
• Moorooduc Hwy / Sages Rd, Frankston South
  Traffic lights installed