Web based matching of transports Leif Olsson
Main idea with the portal 60% left! Shipping agent: Fill the load carrier that is already scheduled Supplier: Get better price on transport with low emissions and delivered in time Load carrier, 20% left!
Existing systems, commercial examples, Sweden DHL Delego Etc. Systems under development, an example Log. It D 2 D – Interbaltic/Transbaltic http: //www. logitsystems. com Cost and time considered in these systems No emissions considered in these systems
The prototype as a starting point, only in Swedish List of transport alternatives minimizing the overall transport cost (in prototype)
The problem description Cost Time Emissions Uncertainty NOT SUPPORTED BY ANY OTHER SYSTEM! High Low, Medium Fast Medium Slow High Medium Low Medium High 1. Intermodality 2. Conflict between criterias 3. Uncertainty Note: This is only an example to illustrate the problem, for instance, cost for different transport modes depends on the length of the actual transport etc.
GUI today, also in english etc (activity 5. 4)
Activity 5. 2: Optimization model illustration • Network model • Degree of detail: Everything is possible!
Activity 5. 2 The routes in the current example (extension of prototype model) • 7 Routes • 55 Distinct legs • Intermodal • Train, Ferry, Truck • Minimizing total transport cost • Emissions and delivery time as constraints
The results from the example (activity 5. 2) Total Cost (SEK) Total Time (HOURS) 10917 11067 11147 11378 12778 10397 181 178 170, 5 166, 5 160, 5 151, 5 Total Emissions Shortage. Cost (SEK) Solution Time example Actual shortage 0 0 0 570962 00: 01 00: 04 00: 07 00: 03 00: 23 00: 40 None None Åbo. Trondhei m route not possible Åbo. Trondhei m and Stockholm. Sundsvall routes not possible (CO 2) 520 500 400 380 360 280 Solution procedure (activity 5. 2) 11877 128, 5 260 570962 00: 30 9005 117 240 1712886 00: 02: 14 Run optimization model Solution 1 2 3 Decrease: Allowed total time, Allowed total amount of emissions.
Visualization of the example (activity 5. 2) Red arrows is the routes choosed by the system in real time 6 9+7 Three transports on the same ferry filling the trucks with additional 5, 9, 7 tons respectively 6 8 5+9+7 8 4 5+7 4 2
Current model status (example) • • No uncertainty considered Only minimizing the transport cost But emissions and time is included as constraints Will be integrated with the portal summer of 2011 (activity 5. 1) Activities: Current and future • How to handle – Uncertain transportation time – Multiple Criterias (Cost, Time, Emissions) – Considered in activity 5. 3 starting in august 2011 • GUI developed so that multiple transports can be considered (not possible today, activity 5. 4)
Choose between routes that are suffiencely different (activity 5. 3) • Different transport modes! • Different routes! Portfolio of transport alternatives!
Activity 5. 3 • Considering uncertainty in model : Less disturbances! • Yes, but disturbances can never be completly avoided ! • Disturbances management therefore important – portfolio of transport alternatives! alternatives Before Uncertainty included in model After Portfolio of transport alternatives
Test case development, start date (Activity 5. 5) 1. 2. 3. Test case nr 1 August 2011 January 2012 Suppliers will be selected from these companies customers (case 1) Test case nr 2 and nr 3: Discussions initiated with Finnish partners in june 2011
• First demonstration with real data planned for january 2012 • First article was submitted 1 june 2011 to the International Journal of Information Technology & Decision Making • This presentation is from the MCDM 2011 conference in Jyväskylä, Finland, 13 -17 june 2011 Thanks for listening!
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