Average Daily Traffic Counts 1972 to 2017
This dataset contains the Average Daily Traffic counts and AM and PM peak hour Traffic counts measured on various road segments in the City of Cambridge from 1972 to 2017. The counts in this data set reflect only vehicle counts. An Average Daily Count measures the number of vehicles for an entire day, or an average of several days. Automatic Traffic Recorders (ATRs) log every vehicle that passes in each direction and this data is used to calculate Average Daily Traffic volumes and AM and PM Peak Hour Traffic Volumes for the street. The Peak Hour is average highest number of vehicles recorded during the morning and evening peak hour. Not all streets have the same peak hour. For example, the peak hour for one street could be 5 pm to 6 pm, whereas a peak hour for another street could be from 5:15 pm to 6:15 pm. The peak hour for a street can also change from day to day. When counts are done for several days, the Peak Hour count is the average of the highest peak hour over those days.
Automatic Traffic Recorders (ATR’s) are rubber hoses temporarily affixed to the street. When a vehicle passes, a pulse of air passes through the hose and triggers an air switch in a recording device on the roadside. The recorder device is a small steel box powered by a battery. Air switch triggers are stored on board and later downloaded to a computer. Note: Traditional and older ATRs were not able to record bicycles, however, more recent ATR’s (past 5 to 10 years) have been able to record bicycles that pass over the recorder.
Columns
Name | Socrata field name | Column name in sgr mount | Data type | Description |
---|---|---|---|---|
cambridge_zipcodes | :@computed_region_rcj3_ccgu | :@computed_region_rcj3_ccgu | Number | |
Location (state) | location_state | location_state | Text | |
Location (address) | location_address | location_address | Text | |
PM Peak 2016 | pm_peak_2016 | pm_peak_2016 | Number | |
PM Peak 2015 | pm_peak_2015 | pm_peak_2015 | Number | |
PMPeak2013 | pmpeak2013 | pmpeak2013 | Number | |
PMPeak2012 | pmpeak2012 | pmpeak2012 | Number | |
PMPeak2009 | pmpeak2009 | pmpeak2009 | Number | |
PMPeak2003 | pmpeak2003 | pmpeak2003 | Number | |
PMPeak2001 | pmpeak2001 | pmpeak2001 | Number | |
PMPeak1998 | pmpeak1998 | pmpeak1998 | Number | |
PMPeak1994 | pmpeak1994 | pmpeak1994 | Number | |
AM Peak 2016 | am_peak_2016 | am_peak_2016 | Number | |
AMPeak2014 | ampeak2014 | ampeak2014 | Number | |
AMPeak2013 | ampeak2013 | ampeak2013 | Number | |
AMPeak2012 | ampeak2012 | ampeak2012 | Number | |
AMPeak2010 | ampeak2010 | ampeak2010 | Number | |
AMPeak2009 | ampeak2009 | ampeak2009 | Number | |
AMPeak2004 | ampeak2004 | ampeak2004 | Number | |
AMPeak2001 | ampeak2001 | ampeak2001 | Number | |
AMPeak2000 | ampeak2000 | ampeak2000 | Number | |
AMPeak1999 | ampeak1999 | ampeak1999 | Number | |
AMPeak1998 | ampeak1998 | ampeak1998 | Number | |
AMPeak1994 | ampeak1994 | ampeak1994 | Number | |
AMPeak1989 | ampeak1989 | ampeak1989 | Number | |
2016 | _2016 | _2016 | Number | |
2011 | _2011 | _2011 | Number | |
2010 | _2010 | _2010 | Number | |
2008 | _2008 | _2008 | Number | |
2006 | _2006 | _2006 | Number | |
2003 | _2003 | _2003 | Number | |
2002 | _2002 | _2002 | Number | |
2001 | _2001 | _2001 | Number | |
2000 | _2000 | _2000 | Number | |
1998 | _1998 | _1998 | Number | |
1997 | _1997 | _1997 | Number | |
1996 | _1996 | _1996 | Number | |
1995 | _1995 | _1995 | Number | |
1994 | _1994 | _1994 | Number | |
Source | source | source | Text | The contractor who conducted the traffic count |
Location | location | location | Point | The latitude and longitude of the traffic count |
PrimaryStreet | primarystreet | primarystreet | Text | The street on which measurement took place |
ID | id | id | Number | Identification number associated with each record |
Classification Counts | classification_counts | classification_counts | Text | |
PM Peak 2017 | pm_peak_2017 | pm_peak_2017 | Number | |
PMPeak2014 | pmpeak2014 | pmpeak2014 | Number | |
PMPeak2011 | pmpeak2011 | pmpeak2011 | Number | |
PMPeak2010 | pmpeak2010 | pmpeak2010 | Number | |
PMPeak2007 | pmpeak2007 | pmpeak2007 | Number | |
PMPeak2004 | pmpeak2004 | pmpeak2004 | Number | |
PMPeak2002 | pmpeak2002 | pmpeak2002 | Number | |
PMPeak1995 | pmpeak1995 | pmpeak1995 | Number | |
PMPeak1989 | pmpeak1989 | pmpeak1989 | Number | |
PMPeak1987 | pmpeak1987 | pmpeak1987 | Number | |
PMPeak1981 | pmpeak1981 | pmpeak1981 | Number | |
AM Peak 2017 | am_peak_2017 | am_peak_2017 | Number | |
AMPeak2011 | ampeak2011 | ampeak2011 | Number | |
AMPeak2007 | ampeak2007 | ampeak2007 | Number | |
AMPeak2006 | ampeak2006 | ampeak2006 | Number | |
AMPeak2005 | ampeak2005 | ampeak2005 | Number | |
AMPeak2002 | ampeak2002 | ampeak2002 | Number | |
AMPeak1997 | ampeak1997 | ampeak1997 | Number | |
AMPeak1996 | ampeak1996 | ampeak1996 | Number | |
AMPeak1987 | ampeak1987 | ampeak1987 | Number | |
AMPeak1981 | ampeak1981 | ampeak1981 | Number | |
2014 | _2014 | _2014 | Number | |
2013 | _2013 | _2013 | Number | |
2012 | _2012 | _2012 | Number | |
2009 | _2009 | _2009 | Number | |
2007 | _2007 | _2007 | Number | |
2005 | _2005 | _2005 | Number | |
2004 | _2004 | _2004 | Number | |
1999 | _1999 | _1999 | Number | |
1989 | _1989 | _1989 | Number | |
1987 | _1987 | _1987 | Number | |
1981 | _1981 | _1981 | Number | |
1972 | _1972 | _1972 | Number | |
Latitude | latitude | latitude | Number | Latitude for traffic count |
Location (city) | location_city | location_city | Text | |
cambridge_cdd_zoning | :@computed_region_swkg_bavi | :@computed_region_swkg_bavi | Number | |
cambridge_neighborhoods | :@computed_region_rffn_qbt6 | :@computed_region_rffn_qbt6 | Number | |
PMPeak1997 | pmpeak1997 | pmpeak1997 | Number | |
Longitude | longitude | longitude | Number | The longitude for the traffic study |
2015 | _2015 | _2015 | Number | |
AMPeak1972 | ampeak1972 | ampeak1972 | Number | |
AMPeak2008 | ampeak2008 | ampeak2008 | Number | |
PMPeak2008 | pmpeak2008 | pmpeak2008 | Number | |
PMPeak2005 | pmpeak2005 | pmpeak2005 | Number | |
PMPeak1999 | pmpeak1999 | pmpeak1999 | Number | |
PMPeak1996 | pmpeak1996 | pmpeak1996 | Number | |
AM Peak 2015 | am_peak_2015 | am_peak_2015 | Number | |
AMPeak2003 | ampeak2003 | ampeak2003 | Number | |
PMPeak2000 | pmpeak2000 | pmpeak2000 | Number | |
2017 | _2017 | _2017 | Number | |
PMPeak2006 | pmpeak2006 | pmpeak2006 | Number | |
PMPeak1972 | pmpeak1972 | pmpeak1972 | Number | |
AMPeak1995 | ampeak1995 | ampeak1995 | Number | |
Location (zip) | location_zip | location_zip | Text | |
Police Response Districts | :@computed_region_v7jj_366k | :@computed_region_v7jj_366k | Number | |
Police Neighborhood Regions | :@computed_region_guic_hr4a | :@computed_region_guic_hr4a | Number |