Divisions & Programs

Journey to Work Data Census Tract Map: 1990 and 2000

Journey to Work information is compiled by the U. S. Census Bureau using data derived from the long form questionnaire administered during the decennial Census of Population. The Journey to Work tables help answer questions such as where workers live and how they commute to work. The information also serves a variety of transportation planning related purposes, including use in connection with the implementation of the City's Parking and Transportation Demand Management (PTDM) Ordinance.

Click here for Mode Split Data for All of Cambridge.

The following map and table allow you to view mode split data for work trips to and from Cambridge, broken down by census tract. Click on a census tract on the map below to view the mode split data for that tract:

Clickable Cambridge census map with mode splits - for alternative access use table below

Click on a census tract number below to view the mode split data for that census tract:

3521	3522	3523	3524	3525	3526	3527	3528	3529	3530
3531	3532	3533	3534	3535	3536	3537	3538	3539	3540
3541	3542	3543	3544	3545	3546	3547	3548	3549	3550

About the Journey to Work Data

Go to the U. S. Census Bureau Journey to Work and Place of Work home page

Data Suppression and Effect on Mode Split

Compilation methods for Census 2000 Journey to Work data complicate assignment of commuters to the modes “biking”, “walking”, and “other means” (i. e., motorcycle, taxicab, miscellaneous other modes). In addition, the Census Bureau suppressed a substantial amount of data altogether, impeding the effort to apportion commuters between all modes. While the figures found in this table derive from Census Transportation Planning Package 2000 Part 3, various techniques apportion the suppressed data and assign commuters to the “biking”, “walking”, and “other means” modes. To resolve some of the statistical uncertainty introduced by these necessary steps, we provide mode split figures in percentage form only. Note that small differences exist between the figures found here and both the citywide mode split for all commuters found in Census 2000 Summary File 3 and the citywide and census tract mode splits found in the CTPP 2000 Part 1 tabulation.

Census Question

The 2000 decennial census derives mode data from the question "How did this person usually get to work last week? If this person used more than one method of transportation during the trip mark the box for the one used for most of the distance." Responses should account for the majority of distance traveled, rather than time taken. Mistaken answers based on time rather than distance might help account for the seemingly large proportion of commuters from Cambridge who report walking to work in distant towns. Another source for commuters who reside in Cambridge yet walk to work in distant towns comprises Cambridge residents visiting hotels or another person’s private residence during Census week. Whatever the source for these long distance walkers, similarly high figures were reported by 1990 U. S. Census.

For More Information

For more information about Parking and Transportation Demand Management in the City of Cambridge, including the PTDM Ordinance, contact Stephanie Groll, TDM Planner, sgroll@cambridgema.gov, at 617/349-4673. The PTDM Ordinance is administered by the Environmental and Transportation Planning Division.

Go to the City of Cambridge PTDM Information Center

For more information about socioeconomic and demographic statistics about Cambridge, please contact Cliff Cook, ccook@cambridgema.gov, Planning Information Manager, at 617/349-4656.

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