human gathering cons

Question 1

traffic surveys and pedestrian counts

Answer 1

one survey is not enough, several should be done at different times/places for comparison.
if its in a busy area you need to be recording quickly.
have to ensure same vehicles/ pedestrians arent counted twice.

Question 2

EQS

Answer 2

subjective to opinion, different person may have completely different results.
visiting different places at different times of day may result in external factors influencing opinion.

Question 3

Questionaires

Answer 3

some people might lie
times of day of important, if lots of people are working the results wont be representative of general overall population.

Question 4

Interview design

Answer 4

it only takes one opinion to make results biased
some people will not want to be stopped and asked questions in the street.

Question 5

Rural land use mapping

Answer 5

land uses may change throughout the year, Eg crop rotation.
some areas may be harder to reach of road, over feilds etc.
if you are unsure whats growing in a field, ask or use google.

Question 6

Urban land use mapping

Answer 6

can be come competitive ib buildings have multiple uses
can be very time consuming.

Question 7

Perception

Answer 7

hard to quantify
difficult to analyse