How Accurate is a Topographic Survey?

The accuracy of a topographic survey can vary depending upon the required use of the data. When a survey is commissioned, accuracy is often mentioned but not fully understood by clients.

Survey Accuracy and RICS Banding.

Kemp Chartered Land and Engineering Surveyors aim to discuss survey requirements at the tender stage and always propose a survey accuracy in line with RICS banding. The failure to start any project with an accurate plan is a recipe for future problems.

The Importance of Accuracy in Surveys.

We consider accuracy and level of detail to be paramount, and as a business, we are dedicated to achieving it. Over-specifying or under-specifying accuracy can have significant cost implications.

What is Accuracy in Surveying?

Accuracy is a relative rather than absolute concept. It refers to the probability of a measurement being close to the truth, while precision refers to the degree of conformity between multiple measurements.

Absolute vs. Relative Accuracy.

In surveying, absolute accuracy refers to a feature’s position on the earth, while relative accuracy measures how accurate two points are relative to each other within the same survey.

Factors That Affect Survey Accuracy.

Accuracy can be influenced by several factors, including uncalibrated instruments, human error, adverse weather, site conditions, and more. It’s essential to weigh the desired accuracy against the time and budget available.

Balancing Accuracy with Cost and Time.

Greater accuracy requires more time, refined methods, and higher costs. For example, a quarry survey with low accuracy requirements may take less time, while a town center project with higher accuracy needs will require more precise tools and time.

Why Kemp Engineering is the Right Choice for Your Survey?

At Kemp Engineering, our extensive experience in surveying and understanding of construction processes enable us to provide unrivaled advice on balancing accuracy and cost for any project.

Quality Assurance and Precision at Kemp.

We employ the correct instruments for the job, and our rigorous QA procedures ensure that we measure to the millimeter when necessary. Our business is ISO9001 quality assured, and we are Construction Line Gold members.

Accuracy is Key to Project Success.

Accuracy should align with project requirements. Don’t over or under specify. At Kemp, we’ve been providing accurate surveys since 1988, and we are RICS regulated, ensuring top-quality results. Remember, compromising on survey quality can lead to costly mistakes later in the project.