2.4.2 Monitoring
Any improvements to the parking and access facilities are likely to change the number of visitors. In this instance, limits could not be set immediately but would be determined from the results of surveillance conducted over the first 5 years of the new regime.
1. The total annual number of visitors, or a representative sample, for the whole, or part, of the site. (This can be used to measure trends.) Until the implications of any possible changes are established by surveillance, a lower limit should be set at the annual number of visitors indicated in the last survey. The upper limit would be the level at which the quality of visitors' experience is diminished by overcrowding. This could be measured by questionnaires.
2. The number of educational groups. A lower limit should be set at the current level.
3. Level of satisfaction measured formally by, for example, structured questionnaires or visitor surveys.
4. The number of complaints or compliments.