Study the data in Table 1, which details the results of a pilot questionnaire survey conducted in a pedestrianized town center. A group of geography students wanted to investigate if the town center’s street design is accessible and safe for elderly pedestrians (aged 70 and over).
| Time of survey | Elderly (70+) alone | Elderly (70+) with companion | Under 70 | Total |
|---|---|---|---|---|
| Weekday Morning (08:00 - 11:00) | 14 | 8 | 22 | 44 |
| Weekday Midday (11:00 - 14:00) | 19 | 12 | 35 | 66 |
| Saturday Morning (08:00 - 11:00) | 3 | 5 | 45 | 53 |
| Saturday Midday (11:00 - 14:00) | 2 | 4 | 68 | 74 |
Suggest two additional primary data collection techniques that the students could use to investigate whether the town center is accessible and safe for elderly pedestrians.