Image by Unsplash, Amy Dekker
HARMONY partners Delft University of Technology, Significance, and the City of Rotterdam recently published the paper “Simulation of the Impacts of a Zero-Emission Zone on Freight Delivery Patterns in Rotterdam” in the Journal of the Transportation Research Board.
How is HARMONY supporting Rotterdam?
Rotterdam has committed to reducing CO2 emissions by 49% by 2030. As part of a broader vision for emission-free city logistics, the city of Rotterdam plans to introduce a Zero-Emission Zone (ZEZ) in combination with urban consolidation centers (UCCs) on the outskirts of the city to generate a shift to zero-emission vehicles.
Urban freight is one of the domains covered in HARMONY, and for this domain a Tactical Freight Simulator (TFS) is being developed and applied to a ZEZ case study In the case study, heterogenous transition scenarios for each logistic segment into the TFS were implemented, and the system-wide impacts were analyzed. This model is multi-agent, empirical, and shipment based and simulates long-term and short-term tactical choices.
What have we learned?
Results confirmed that emissions reduced dramatically, by 90%, inside the ZEZ. At the city scale, this corresponds to a reduction of almost 10%, as most freight-related traffic is generated by the port and involves long-haul heavy goods vehicles that now do not enter the city center.
Another interesting finding was a small increase of +0.25% in vehicle kilometers traveled overall, which can be attributed to the rerouting of shipments through the UCCs.
Finally, HARMONY’s TFS proved effective in addressing a complex ZEZ city logistics scenario within a UCC. The level of detail in the multi-agent model also permits assessment of different transition paths to ZEZ vehicles for each logistics segment, to better account for the heterogeneity in preferences of different actors. This provides a better empirical basis for informed decision-making.
However, to achieve this policy objective, more measures are needed, for instance to decarbonize long-haul freight transportation, which constitutes a large part of the emissions in the study area.
You can read the full paper on the HARMONY publications webpage.
Author: ENIDE SOLUTIONS