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Table 6 Explanation of the symbols in the equations (1)–(6)a

From: A shift-share based tool for assessing the contribution of a modal shift to the decarbonisation of inland freight transport

Symbol Description
Q quantity, number of tons transported
TM transport market effect, tons
CM cargo market effect, tons
C competition effect, tons
t year
l length of period under analysis, in years
i cargo type
G growth percentage of the total transport market
Gi general growth percentage of cargo type i
gi mode specific growth percentage of cargo type i
ΔCO2 change in CO2 emission
Ad average distance
Ef emission factor
d distance market
m mode before shift
n mode after shift
  1. aEquation (6) can be found in Section 3