1 NTOC Talking Operations – Road Weather Management – September 30, 2008 Illinois DOT MDSS… a Smart Investment (Paul) Dean Kernan Illinois DOT Field Technician

2 NTOC Talking Operations – Road Weather Management – September 30, 2008 About Illinois DOT

3 NTOC Talking Operations – Road Weather Management – September 30, 2008 About Illinois DOT Statistics:Statistics: –42,871 lane miles –1,153 routes & > 1700 plows –9 Districts / 5 Regions –165 garages –Maintainers are Teamsters –60 RWIS sites (DOT) –40 RWIS sites (Tollways)

4 NTOC Talking Operations – Road Weather Management – September 30, 2008 More about Illinois DOT Practices:Practices: –Anti-icing employed for years –Chemical: Salt/brine, cal chloride –Treatment rules aligned with FHWA rules of practice Vision/directionVision/direction –More info sharing between districts and surrounding states –Become more involved with MDSS –Add AVL to MDSS

5 NTOC Talking Operations – Road Weather Management – September 30, 2008 About The Event The Event (Number 31!)The Event (Number 31!) –Moderate snow event Feb ,2008 –District 2 (NW Illinois) –Decisions District 2 made -- how our Weather/MDSS Provider was used BenefitsBenefits –District in this storm –State in general

6 NTOC Talking Operations – Road Weather Management – September 30, 2008 Wednesday, February 27th

7 NTOC Talking Operations – Road Weather Management – September 30, 2008 AM

8 NTOC Talking Operations – Road Weather Management – September 30, Hours Prior to the event

9 NTOC Talking Operations – Road Weather Management – September 30, 2008 Predicted Road Temperatures

10 NTOC Talking Operations – Road Weather Management – September 30, 2008

11 NTOC Talking Operations – Road Weather Management – September 30, 2008

12 NTOC Talking Operations – Road Weather Management – September 30, 2008

13 NTOC Talking Operations – Road Weather Management – September 30, 2008 Friday morning

14 NTOC Talking Operations – Road Weather Management – September 30, 2008 MDSS Benefits: District 2 for this Storm Improved safety & level of serviceImproved safety & level of service Cost reductionCost reduction –Improved crew callout precision: $20,400 (3 $6,800/hour)$20,400 (3 $6,800/hour) –Avoided 1 un-needed application $72,325 (Salt costs are jumping)$72,325 (Salt costs are jumping) MDSS… a Smart Investment

15 NTOC Talking Operations – Road Weather Management – September 30, 2008 –Reduced application rates (actual savings not calculated) Crews able to adjust their applications to lower ratesCrews able to adjust their applications to lower rates Only spread bridges/overpassesOnly spread bridges/overpasses –Total: >$92,000 + MDSS Benefits: District 2 for this Storm cont’d MDSS… a Smart Investment

16 NTOC Talking Operations – Road Weather Management – September 30, 2008 MDSS Benefits: for Illinois DOT Statewide Improved safety & level of serviceImproved safety & level of service Cost reduction throughout IL DOT:Cost reduction throughout IL DOT: –Improved crew callout precision: Each hour saved is $48,000 – 96,000, depending on day of week/time of dayEach hour saved is $48,000 – 96,000, depending on day of week/time of day MDSS… a Smart Investment

17 NTOC Talking Operations – Road Weather Management – September 30, 2008 MDSS Benefits: Illinois DOT Statewide (cont’d) –Avoiding un-needed applications Avoiding one application saves -- in labor, material & equipment: $710,000Avoiding one application saves -- in labor, material & equipment: $710,000 –Reduced application rates Each 1% of chemical savings each winter is $150,000 - $350,000 (Avg. of past 3 years)Each 1% of chemical savings each winter is $150,000 - $350,000 (Avg. of past 3 years) –Totals are easily in the $Millions MDSS… a Smart Investment

18 NTOC Talking Operations – Road Weather Management – September 30, 2008

19 NTOC Talking Operations – Road Weather Management – September 30, North College Avenue Geneseo, Illinois (W)