Criteria | Ultra-low sulfur diesel | Biodiesel | Compressed natural gas (CNG) | Hybrid diesel-electric |
(1) Energy availability | 6 | 8 | 4 | 2 |
(2) Energy independence | 4 | 3 | 1 | 2 |
(3) Energy efficiency | 9 | 12 | 6 | 3 |
(4) Cost of implementation | 5 | 15 | 20 | 10 |
(5) Cost of maintenance | 4 | 12 | 8 | 16 |
(6) Air pollution | 18 | 18 | 6 | 6 |
(7) Noise pollution | 27 | 27 | 18 | 9 |
(8) Safety | 4 | 4 | 6 | 2 |
(9) Vehicle capability | 8 | 32 | 16 | 24 |
(10) Vehicle reliability | 7 | 21 | 14 | 21 |
(11) Vehicle serviceability | 11 | 33 | 22 | 33 |
(12) Sense of comfort | 30 | 40 | 20 | 10 |