Low carbon transportation in Thailand: CO2 mitigation strategy in 2050

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Table 1 Coefficients of estimated number of vehicles

Sector	A	B	c	R²
Small sedan	56.636	0.75026	−28,250,925	0.9832
Large sedan	34.376	0.46688	−17,147,011	0.9832
Passenger van	1.930	0.28337	−94,588	0.9996
Tuk tuk	0.212	0.00698	172,208	0.9311
Taxi	1.196	−0.00241	−415,409	0.9479
Motorcycle	−36.701	0.00770	−101,166,717	0.9794
Bus	0.638	1.86927	−122,061	0.9987
Pick-up	73.948	0.44702	−25,326,736	0.9835
Truck	5.269	0.05679	−2,928,072	0.9866
Others	8.584	0.00383	44,329	0.6551
Railway	1.305	0.00064	−58,867	0.9970
Electric railway	−3708.478	1.00121	−1,705,321,643	0.9360
Waterway	0.102	0.00201	−118,723	0.9669
Airway	0.009	0.00002	−1061	0.9733