Analysis of the Low-Carbon, Environmental-Friendly, Energy-Saving, and Emission-Reduction Evaluation Model of Urban Rail Transit Based on the Spatiotemporal Distribution of Passenger Flow

Table 7

Emission reduction of other indicators under the influence of urban rail transit.

Index	Period	Standard scenario (t)	Design scenario (t)	Emission reduction (t)	Emission-reduction ratio (%)
CO	Morning peak	15.3	21.9	6.6	43
	Evening peak	18.2	24.1	5.9	32
	Average peak	10.7	12.9	2.2	21
NOx	Morning peak	2.6	3.6	1 3	38
	Evening peak	3.1	3.9	0.8	26
	Average peak	1.7	0.3	18%	18
HC	Morning peak	1.7	2.5	0.8	47
	Evening peak	2.1	2.7	0.6	29
	Average peak	1.2	1.4	0.2	17
PM	Morning peak	0.077	0.104	0.027	35
	Evening peak	0.089	0.112	0.023	26
	Average peak	0.046	0.054	0.008	17