Geography K–10 · Years 7–8
Liveability transect: measuring environmental quality at five sites
Place and liveability (ACARA Year 7 sub-strand); NSW Stage 4 focus area Place and Liveability (2015 syllabus) and Liveability of places (2024 syllabus)
The idea
Environmental quality can be measured, not only felt: noise, shade, litter, traffic and surface heat differ along a walk through a suburb and can be scored and mapped.
Safety card
Hazards
- traffic
- sun
- approaching strangers for the survey
- laser pointer in some infrared thermometers
Controls
- footpath route, crossings at lights, adult ratio per excursion policy
- hats and water
- surveys only with the school's permission and an adult present; no names, addresses or photographs of the people surveyed are recorded
- never point the infrared thermometer at a person
Note
No chemicals or heat are used. The activity is run under the school risk-assessment procedure; RiskAssess (riskassess.com.au) holds templates for school practicals and fieldwork. The NSW Department of Education Chemical Safety in Schools package is not triggered.
What you need
- A 1.5 km walking transect from the school through a shopping strip to a park, with five numbered sites marked on a printed map at a known scale
- Sound level meter or a phone decibel app (state which, and record its calibration: a meter's last calibration date, or for an app what it was checked against and when), reporting A-weighted levels in dB(A)
- Infrared thermometer; a 10 m tape; clipboard tally sheets; stopwatch
- A short liveability survey (five questions, 1–5 scale) for ten passers-by or residents, cleared by the school
How to do it
- At each site record for 5 minutes: the A-weighted equivalent continuous sound level over the whole 5 minutes (LAeq, in dB(A)) and the A-weighted maximum (LAmax, in dB(A)). A level in decibels is not a defined quantity without its frequency and time weighting, so both weightings are stated and the same instrument is used at all five sites. Record with them the number of vehicles passing and the number of pedestrians.
- Count litter items on a 10 m length of footpath. At each metre mark from 1 m to 10 m look straight up and record whether tree canopy or an awning covers that point; overhead cover = covered points ÷ 10, a measure that does not change with the time of the visit. Record the time at each site.
- Take five infrared readings of the footpath surface and record the median (°C).
- Ask ten people the survey (or survey the class as residents) and average each question.
- Rank the five sites on each measure; map the ranks on the transect and choose the most and least liveable site with the numbers as evidence.
What you should see
A table of five sites by six measures, each with units, and a ranked map. Busy road sites are expected to show a higher LAeq, more vehicles and a hotter footpath, the park site lower dB, more overhead cover and cooler surfaces, and the shopping strip the most pedestrians; the table shows whether this transect follows that pattern. The class states which measures agree with the survey answers and which do not. It worked if every site has all six measures from the same afternoon, with the time of each visit recorded because surface temperatures change through the afternoon.
What changes
- What you change
- site along the transect
- What you measure
- sound level (LAeq and LAmax in dB(A)), traffic count, pedestrian count, litter count, overhead cover fraction, surface temperature
- What you keep the same
- same afternoon
- same 5 minute count window
- same instruments and observers
Common misconceptions
Each of these ideas is wrong, and the activity is a chance to test it.
- Liveability is only about opinions.
- Quiet places are always far from shops and services.
Curriculum references
The NSW syllabus outcomes and Australian Curriculum v9 codes this activity supports. They are references, not a verified or complete curriculum alignment.
- Geography K–10 Syllabus (2015), NESA; current and taught in 2026, replaced from 2027. The outcome codes are not printed on the NESA landing page for this syllabus, which only links the document, so the url given is the syllabus document itself (geography-k-10-syllabus-2015.docx); the code and its outcome text were read in that document on 23 September 2026.GE4-1GE4-4GE4-7
- Geography 7–10 Syllabus (2024), NESA; implementation from 2027, not yet taught; code read on this page on 22 September 2026GE4-DFC-01GE4-PER-01
- Australian Curriculum v9AC9HG7K05AC9HG7S02
Sources
The pages the author read to write this activity.