6.7. Problems

Try these first

1. 1.

   What is the main purpose of data collection in transportation engineering?

   Hint

   Think about what informs decisions in transportation systems.

2. 2.

   Define household data.

   Hint

   Relate it to travel activities of family members.

3. 3.

   What is the purpose of data validation?

   • True
   • False

   Hint

   Think about ensuring quality before using data for conclusions.

4. 4.

   Name one common issue with household data collection.

   • High response rate
   • Non-response
   • High accuracy

   Hint

   What happens when you don’t hear back from everyone you ask?

5. 5.

   You are designing a survey for a new transportation project. What steps would you take to ensure it is free from bias and accurately represents the population?

   Hint

   Think about the components of survey design discussed.

6. 6.

   After conducting a survey, you discover a significant non-response rate. What strategies could you utilize to address this and enhance the reliability of your data?

   Hint

   Reflect on the issues faced during household data collection.