Given a sentence in the Japanese, provide an equivalent translation in Bahasa Indonesia that retains the same meaning through the translation. In translation, keep numbers as it is.
Q: この午後より前に行った測量ではそれが安全だと判断されていた。
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Sebelumnya siang itu, pengukuran-pengukuran telah diambil untuk menentukan stabilitasnya.