Variable Search Results

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Name
Label/Question

ICPSR Unique Record Identifier

ICPSR Unique Record Identifier.

Taken from: Baltimore Travel Survey, 1977.

Household Identification number

The household batch number.

Taken from: Baltimore Travel Survey, 1977.

Person number

Person number.

Taken from: Baltimore Travel Survey, 1977.

Trip number

Trip number, in sequence, beginning with 01 for each person.

Taken from: Baltimore Travel Survey, 1977.

Trip type

Trip type: indicates the trip purpose category and sequence in which the trip falls. Trips within the same category are numbered sequentially. This ordering was done by the interviewer in the random selection of a single trip for detailed reporting ... (view details)

Taken from: Baltimore Travel Survey, 1977.

Census block of trip origin

Census block of the trip origin. Code 888.88 indicates the origin is outside the study area.

Taken from: Baltimore Travel Survey, 1977.

Census tract of trip origin

Census tract of the trip origin. Code 8888.88 indicates the origin is outside the study area.

Taken from: Baltimore Travel Survey, 1977.

TAZ of trip origin

Traffic analysis zone of the trip origin. Codes of 499 or greater are external cordon points.

Taken from: Baltimore Travel Survey, 1977.

Problem flag for address coding of trip origin

Problem flag for address coding of the trip origin. This field was recorded by the address coders when there occurred a possible problem with identification of the address's block, tract, or zone. Ranging between 0.1 and 0.9, the variable indicates ... (view details)

Taken from: Baltimore Travel Survey, 1977.

Census block of trip destination

Census block of the trip destination: analogous to T6 OBLOCK.

Taken from: Baltimore Travel Survey, 1977.

Census tract of trip destination

Census tract of the trip destination; analogous to T7 OTRACT.

Taken from: Baltimore Travel Survey, 1977.

TAZ of trip destination

Traffic analysis zone of the trip destination; analogous to T8 OZONE.

Taken from: Baltimore Travel Survey, 1977.

Problem flag for address coding of trip destination

Problem flag for address coding of the trip destination; analogous to T9 OFLAG.

Taken from: Baltimore Travel Survey, 1977.

Purpose at trip origin

Purpose at the trip origin; derived from the purpose at the destination of the previous trip. For the respondent's first trip of the day, the origin was taken to be at home, except where P53 AREADE... (view details)

Taken from: Baltimore Travel Survey, 1977.

Purpose at trip destination

Purpose at the trip destination as reported by the respondent:

Taken from: Baltimore Travel Survey, 1977.

Travel Mode

Travel Mode:

Taken from: Baltimore Travel Survey, 1977.

List of person numbers of HH in the trip - first

A list of person numbers of any other household members accompanying the respondent on this trip. The list includes children under 12 years as well as older persons. ... (view details)

Taken from: Baltimore Travel Survey, 1977.

List of person numbers of HH in the trip - second

A list of person numbers of any other household members accompanying the respondent on this trip. The list includes children under 12 years as well as older persons. ... (view details)

Taken from: Baltimore Travel Survey, 1977.

List of person numbers of HH in the trip - third

A list of person numbers of any other household members accompanying the respondent on this trip. The list includes children under 12 years as well as older persons. ... (view details)

Taken from: Baltimore Travel Survey, 1977.

List of person numbers of HH in the trip - fourth

A list of person numbers of any other household members accompanying the respondent on this trip. The list includes children under 12 years as well as older persons. ... (view details)

Taken from: Baltimore Travel Survey, 1977.

List of person numbers of HH in the trip - fifth

A list of person numbers of any other household members accompanying the respondent on this trip. The list includes children under 12 years as well as older persons. ... (view details)

Taken from: Baltimore Travel Survey, 1977.

List of person numbers of HH in the trip - sixth

A list of person numbers of any other household members accompanying the respondent on this trip. The list includes children under 12 years as well as older persons. ... (view details)

Taken from: Baltimore Travel Survey, 1977.

Number of occupants

Number of occupants, including both household members and non-household members. The driver is counted in the total.

Taken from: Baltimore Travel Survey, 1977.

Carpool indicator

Carpool indicator; taken directly from respondent's answer to "were you traveling in a carpool?"

Taken from: Baltimore Travel Survey, 1977.

HH vehicle used for trip

Household vehicles used for this trip:

Taken from: Baltimore Travel Survey, 1977.

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