Urban Transportation Center, UIC. Abstract

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1 J.G. Berman Siim SööS ööt Susumu Kudo Urban Transportation Center, UIC Abstract The poster models and analyzes travel behavior by race and ethnicity in Lake County, Illinois, an early test site of the ACS, beginning According to the forecast of the Northeastern Planning Commission, Metro Chicago s population will be more than 50% Hispanic and African American by

2 Purposes Present demographic and socioeconomic profiles and trends. Analyze travel-related characteristics of the growing Hispanic and stable African American populations. Examine strengths and weaknesses of the ACS products for transportation analysis. Methods I The research maps travel behaviors through mode choice and travel time. Census data products used: ACS Summary Tables ( ) CTTP ACS ( ) Scale of analysis: County level for the ACS summaries TAZ level for the CTTP ACS data 2

3 Methods II Types of Analysis: Descriptive analysis Weighted Ordinary Least Squares Problems with the data included: Data gaps in TAZs with small populations Use of aggregate data Response effects of various survey questions Findings 3

4 73% 72% Labor Force and Employment, by Year 72.7% 71.9% 71.7% 71.5% 72.4% 10% 9% 71% 8.0% 8% 70% 7.2% 7% 69% 69.4% 6% 68% 68.2% 68.1% Labor Force Employed Unemployed 5% 67% 4.1% 4.1% 3.8% 66.9% 66.2% 66% Unemployment is increasing 4% 3% 20% Race/Ethnicity Group and Language Proficiency, by Year 79.5% 18% 16% 14% 78.8% 14.6% 15.0% 15.9% 78.0% 16.9% 79.0% 78.5% 78.0% 12% 77.5% 10% 10.3% 77.2% 77.0% 8% 6% 4% 7.1% Hispanic NH Black 6.5% 6.3% 6.8% 6.4% 75.9% 76.5% 76.0% 75.5% 2% Only English Speaking 75.0% 0% 74.5% Hispanics up; Language proficiency down 4

5 Hispanics are clustered in several areas Blacks are concentrated in the East 5

6 Mean Travel Time Hispanics and especially Black Non- Hispanics have shorter travel times. The impact of vehicle ownership contributes to travel time. High travel times in transportation corridors 6

7 Travel Time of Day Hispanics, Blacks and the disabled commute during the nontraditional periods. Women and income add to starts during traditional peak hours. Traditional commutes close to Chicago 7

Travel by Train The population traveling by train is quite different; positive zonal association

8 Travel by Bus Bus users tend to be Blacks and Hispanics, employees with 1 vehicle in the household and the disabled. These are traditionally transit-captive populations. Travel by Train The population traveling by train is quite different; positive zonal association with high income, children, and senior citizens. The African American population displays negative association with travel by train. 8

9 Carpooling Carpooling II Blacks and to a very high degree Hispanics car share. The following populations however tend to ride alone: employees in 3+ car households, females and families with children. Families with many cars tend to travel for a longer time, and not to share rides. 9

10 Conclusions During the ACS data period ( ) Employment rates declined. Unemployment rates increased. Hispanic population grew by 6.6%, from 10.3% to 16.9% Black population declined by 0.7%. 10

11 Travel by race and ethnicity Black and Hispanic populations tend to have shorter trips, They use more public transit and carpooling. They travel during non-traditional commute periods. ACS Data Longitudinal data by County TAZ coverage incomplete 11

12 Future Research Analysis of disaggregate data through the Research Data Center Travel behavior modeling through advanced methods 12

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