5. Efficiency of Transport Modes
5. Efficiency of Transport Modes
The efficiency of different transport modes can be compared when measured in terms of CO2e per passenger kilometre (ppkm). These measures provide another means of considering transport emissions. Figure 18 is compiled from data published in the UK Company Reporting Guidelines[17].
- Coach is the least emitting means of travel per passenger kilometre, followed by rail.
- The most emitting mode of travel is domestic aviation, at 158 g CO2e/ppkm (per passenger kilometre).
- Most modes have seen significant improvements in emissions per passenger kilometre in recent years, notably in rail and in domestic and short haul international aviation.
gCO2e/ppkm |
|||||||||
| Sector |
Mode and fuel |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
% Change 2012-2018 |
|---|---|---|---|---|---|---|---|---|---|
| Road |
Average petrol car |
134 |
131 |
128 |
127 |
128 |
124 |
122 |
-8.4% |
| Average diesel car |
124 |
121 |
123 |
121 |
122 |
119 |
118 |
-4.4% |
|
| Average petrol hybrid car |
89 |
87 |
89 |
85 |
88 |
79 |
84 |
-5.6% |
|
| Average petrol motorbike |
119 |
119 |
120 |
120 |
120 |
117 |
115 |
-3.1% |
|
| Average bus |
112 |
112 |
109 |
109 |
102 |
103 |
101 |
-9.8% |
|
| Average coach |
29 |
29 |
29 |
29 |
29 |
28 |
28 |
-2.5% |
|
| Rail |
National rail |
58 |
49 |
47 |
45 |
49 |
47 |
44 |
-24.0% |
| Light rail and tram |
68 |
60 |
62 |
55 |
54 |
44 |
40 |
-41.3% |
|
| Ferry (Large RoPax) |
Average foot and car passengers |
116 |
116 |
116 |
116 |
116 |
116 |
113 |
-2.8% |
| Aviation |
Average domestic flights |
180 |
173 |
155 |
158 |
147 |
141 |
158 |
-12.4% |
| Average short haul international |
104 |
102 |
88 |
90 |
89 |
85 |
86 |
-17.3% |
|
| Average long haul international |
119 |
120 |
111 |
105 |
101 |
104 |
112 |
-5.4% |
|
Source: UK Company Reporting Guidelines