谷歌公共交通信息標(biāo)準(zhǔn)化通用數(shù)據(jù)標(biāo)準(zhǔn)GTFS簡介

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為了公共交通信息標(biāo)準(zhǔn)化和便于使用地圖顯示工具信息，谷歌推出了“谷歌通用數(shù)據(jù)標(biāo)準(zhǔn)“GTFS，具體規(guī)定有很多，簡單來講，使用CSV文本格式，并使用簡單的字符。Google在全球應(yīng)用的GTFS數(shù)據(jù)標(biāo)準(zhǔn)下的數(shù)據(jù)樣本，可清楚看到Google對公交數(shù)據(jù)的設(shè)計特點。

agency.txt�。�機(jī)構(gòu)）必須

stoPS.txt　（站點）必須

routes.txt�。�路線）必須

trips.txt　（路趟）必須

stop_times.txt�。ㄍ＼嚕瓡r間）必須

calendar.txt�。ㄈ諝v）必須

calendar_dates.txt�。ㄈ諝v－日期）可選

fare_rules.txt�。ㄆ眱r－規(guī)定）可選

fare_attributes.txt　（票價－屬性）可選

shapes.txt�。ㄐ螤睿┛蛇x

frequencies.txt�。�頻率）可選

transfers.txt�。ㄞD(zhuǎn)車）可選

以下是各個文件的實例：
agency.txt
agency_id, agency_name,agency_url,agency_timezone,agency_phone,agency_lang
FunBus,The Fun Bus,http://www.thefunbus.org,America/Los_Angeles,(310) 555-0222,en

stops.txt
stop_id,stop_name,stop_desc,stop_lat,stop_lon,stop_url,location_type,parent_station
S1,Mission St. & Silver Ave.,The stop is located at the southwest corner of the intersection.,37.728631,-122.431282,,
S2,Mission St. & Cortland Ave.,The stop is located 20 feet south of Mission St.,37.74103,-122.422482,,
S3,Mission St. & 24th St.,The stop is located at the southwest corner of the intersection.,37.75223,-122.418581,,
S4,Mission St. & 21st St.,The stop is located at the northwest corner of the intersection.,37.75713,-122.418982,,
S5,Mission St. & 18th St.,The stop is located 25 feet west of 18th St.,37.761829,-122.419382,,
S6,Mission St. & 15th St.,The stop is located 10 feet north of Mission St.,37.766629,-122.419782,,
S7,24th St. Mission Station,37.752240,-122.418450,,,S8
S8,24th St. Mission Station,37.752240,-122.418450,http://www.bart.gov/stations/sta ... onoverview_24st.asp,1,routes.txt
route_id,route_short_name,route_long_name,route_desc,route_type
A,17,Mission,"The ""A"" route travels from lower Mission to Downtown. The ""A"" route is available for service on weekdays and weekends, but weekend service has limited stops.",3

trips.txt
route_id,service_id,trip_id,trip_headsign,block_id
A,WE,AWE1,Downtown,1
A,WE,AWE2,Downtown,2

stop_times.txt
trip_id,arrival_time,departure_time,stop_id,stop_sequence,pickup_type,dropoff_type
AWE1,0:06:10,0:06:10,S1,1,0,0,0
AWE1,,,S2,2,0,1,3
AWE1,0:06:20,0:06:30,S3,3,0,0,0
AWE1,,,S5,4,0,0,0
AWE1,0:06:45,0:06:45,S6,5,0,0,0
AWD1,0:06:10,0:06:10,S1,1,0,0,0
AWD1,,,S2,2,0,0,0
AWD1,0:06:20,0:06:20,S3,3,0,0,0
AWD1,,,S4,4,0,0,0
AWD1,,,S5,5,0,0,0
AWD1,0:06:45,0:06:45,S6,6,0,0,0

calendar.txt
service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
WE,0,0,0,0,0,1,1,20060701,20060731
WD,1,1,1,1,1,0,0,20060701,20060731

calendar_dates.txt
This example shows service exceptions for the Independence Day holiday in 2006. On Monday July 3, 2006, regular weekday service (service_id=WD) is interrupted (exception_type=2). Instead, weekend service (service_id=WE) runs on that date (exception_type=1). The same change applies on Tuesday July 4, as well.
service_id,date,exception_type
WD,20060703,2
WE,20060703,1
WD,20060704,2
WE,20060704,1

fare_attributes.txt
fare_id,price,currency_type,payment_method,transfers,transfer_duration
1,0.00,USD,0,0,0
2,0.50,USD,0,0,0
3,1.50,USD,0,0,0
4,2.00,USD,0,0,0
5,2.50,USD,0,0,0

fare_rules.txt
fare_id,route_id,origin_id,destination_id,contains_id
a,TSW,1,1,
a,TSE,1,1,
a,GRT,1,1,
a,GRJ,1,1,
a,SVJ,1,1,
a,JSV,1,1,
a,GRT,2,4,
a,GRJ,4,2,
b,GRT,3,3,
c,GRT,,,6

shapes.txt
shape_id,shape_pt_lat,shape_pt_lon,shape_pt_sequence,shape_dist_traveled
A_shp,37.61956,-122.48161,1,0
A_shp,37.64430,-122.41070,2,6.8310
A_shp,37.65863,-122.30839,3,15.8765

frequencies.txt
trip_id,start_time,end_time,headway_secs
AWE1,05:30:00,06:30:00,300
AWE1,06:30:00,20:30:00,180
AWE1,20:30:00,28:00:00,420

transfers.txt
from_stop_id,to_stop_id,transfer_type,min_transfer_time
S6,S7,2,300
S7,S6,3,
S23,S7,1,
按照這些規(guī)定整理數(shù)據(jù)，您的公交系統(tǒng)信息就會在谷歌公交地圖工具中顯示出來了。

數(shù)據(jù)標(biāo)準(zhǔn)包括以下文件見（http://code.google.com/transit/s ... ransitAgencyExample）