	Name	Description
Platforms	1) applet of wechat	“Green credits system” uses WeChat applet to develop, and forms a closed loop with WeChat and official accounts, users do not need to download additional app.
Platforms	2) Official accounts	Be used with small programs; make publicity of environmental protection, travel and life; Mainly for young commuters.
Functions	3) collect user travel information	Collect used vehicles; Share the data of the electronic transportation card, Alipay and the city bus app.
	4) Statistical integral	The user green credits statistics.
	5) Ranking	The ranking of users’ green credits every day is the same as the “WeChat Steps” strategy, and they “compete” with the friends of the friends list.
	6) Calculation and display of transportation carbon emissions	According to individual travel, combined with the carbon emission calculation and publicity, the user’s daily carbon emissions from transportation are obtained and compared with the national average of users.
	7) Official accounts push	None
	8) Credits trading	Consumption of green points in exchange for commodities, free tickets for public transportation, free tickets for sharing bicycles, parking tickets, etc.
Management*	9) data management	It is necessary to collect the data of users’ use of different types of vehicles on different platforms to complete the storage, analysis, statistics, management and uploading of data.
	10) User management	Manage user permissions, user status, user behaviors, user feedback processing, etc.
	11) System guarantee	System operation monitoring, data update process monitoring, and user behavior monitoring ensure the stable operation of the system.
	12) Business management	Automatically publish data sets, complete credits redemption and other functions, and adjust point strategies based on user feedback and users’ use of vehicles after the credit system