{
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 "description": "| A. PURPOSE | Centerline shapefile of San Francisco's streets and number of lanes by time of day. | B. METHODOLOGY | This shapefile is derived from data initially provided by the San Francisco County Transportation Authority (SFCTA) in 2010 from their travel forecasting model (SF-CHAMP 4). In 2010-2011, the San Francisco Department of Public Health\u2019s Program on Health, Equity and Sustainability (SFDPH-PHES) developed a methodology to convert the SFCTA travel forecasting model data outputs so they could be joined to the CNN (Centerline Network Number) street format (the unique identifier used for street segments in San Francisco), resulting in the data included in this shapefile. More detailed information regarding this approach is available upon request.| C. UPDATE FREQUENCY | Unknown. | D. OTHER CRITICAL INFO | Previously found at \\\\mtanas\\T_E_DATA\\GIS\\SF Shapefiles\\DPH Number Traffic Lanes\\Streets_Vehicle_Traffic_TA_Lanes.shp. Some of the streets were originally coded in the SFCTA data as having \u201c0\u201d lanes, and remain as such. 1.6% of the zero-lane roads are in the Presidio neighborhood and 0.4% are in the new Mission Bay neighborhood. The remaining 1.5% of roads coded as having zero lanes appear to be sporadic around the city and based on visual inspection are largely a mix of parking lot, driveway, dead ends, alleys, private, and newly-constructed roads. All attributes are from the street centerlines feature class except those listed below.| E. ATTRIBUTES |Lane_AM: number of auto lanes during AM Peak hours;Lane_OP: number of auto lanes during non-peak hours;Lane_PM: number of auto lanes during PM peak hours.",
 "summary": "",
 "title": "MTA.CTA_trafficlanes",
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 "minScale": "NaN",
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 "accessInformation": "| A. CUSTODIAN | SFCTA\n| B. CREATED | San Francisco County Transportation Authority (SFCTA), 2010. San Francisco Department of Public Health-Program on Health, Equity and Sustainability (SFDPH-PHES), 2011. \n| C. VERSIONS | \n20160923, Steph A. Nelson imported into MTA spatial data store and re-formatted metadata.",
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}