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STREAM Freight transport

The STREAM freight transport project (Study on TRansport Emissions of All Modes) is a comprehensive study of current international freight transport emissions, with projections for the year 2020. One of the fruits of this research is a model that calculates emissions on the basis of logistical performance. Is it better to transport goods to Duisburg or Basel by ship, train or truck? The answer will depend on the vehicles and emission abatement technologies employed , logistical parameters and the emissions of interest (CO2 or air pollutants, for example). (There is also a STREAM project on passenger transport).

The STREAM model calculates the emissions of each mode of transport, factoring in all relevant variables. The model’s succinct data output for the various transport modes can be used to perform intermodal comparisons or calculate environmental footprints, using either market-average parameters or parameters tailored to specific situations.  A typical example would be comparison of freight feed-in to a seaport by market-average barge via an adjacent waterway versus fuel-efficient trucks by road.

The STREAM model can also be used to calculate the impact on emissions of new technologies, government policies and logistical optimisation, using datasets broadly accepted by science, industry and government. The methodology is thus robust, and is being continually tweaked on the basis of the latest figures and findings. 

Representative emission factors per mode, bulk/packaged cargo transport

Mode

Vehicle/Vessel

Type of freight

CO2(g/tkm) (WTW)

PMc(g/tkm) (TTW)

NOx(g/tkm) (TTW)

Road

Large van

Med.-weight

1,153

0.148

5.03

Truck, medium-size

Med.-weight

259

0.017

1.75

Tractor-semitrailer

Med.-weight

82

0.003

0.29

Rail

Electric, medium-length*

Heavy

10

 0

0

Diesel, medium-length*

Heavy

18

0.005

0.19

Inland shipping

Rhine-Herne canal (RHC) vessel

Heavy

38

0.017

0.46

Large Rhine vessel

Heavy

21

0.008

0.23

Short-sea

General Cargo 10-20 dwkt

Heavy

15

0.005

0.25













* Share of electric: 70-90%; share of diesel: 10-30%.
  

Representative emission factors per mode, container transport

Mode

Vehicle/Vessel

Type of freight

CO2(g/tkm) (WTW)

PMc(g/tkm) (TTW)

NOx(g/tkm) (TTW)

Road

Tractor-semitrailer, heavy 
(2 TEU)

Med.-weight

102

0.004

0.36

Rail

Electric, long (90 TEU)*

Med.-weight

16

   

Diesel, long (90 TEU)*

Med.-weight

30

0.009

0.309

Inland shipping

RHC vessel (96 TEU)

Med.-weight

44

0.019

0.53

Large Rhine vessel (208 TEU)

Med.-weight

24

0.009

0.26

Short-sea

Container (Panamax-like, 
4,060 TEU)

Med.-weight

21

0.008

0.35












* Share of electric: 70-90%; share of diesel: 10-30%.

Tailor-made solutions for industry

There is a growing need for companies to have robust knowledge of the environmental impact of their logistical operations, one reason being customer demand for information on that impact and the steps being taken to reduce it. With the STREAM model and the underlying methodologies CE Delft can help companies set up their own carbon footprint calculations. While open-source, average emission factors can be used for this purpose, we can also calculate customized  factors tailored to the kind of goods involved, transport distances, company-specific load factors and other parameters cited above.

As a supporting party to the Dutch Sustainable Logistics programme, CE Delft has worked extensively with shippers and carriers. We can help you calculate total fleet emissions and also support you in developing an  emissions calculator as one element of a comprehensive logistics planning package. Examples of our projects in this area include the Logistics Emissions Scan and the ABCO2 tool.

Your contact

For more information, contact Matthijs Otten


 

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