The phrase "after an initial survey" is correct and usable in written English.
You can use it when referring to actions or conclusions drawn following the completion of a preliminary assessment or evaluation.
Example: "After an initial survey, we found that most participants preferred the new design over the old one."
Alternatives: "following a preliminary survey" or "subsequent to an initial survey."
Italy's cultural ministry said: "After an initial survey, damage to cultural patrimony appears significant".
After an initial survey of cultural monuments and churches, the government said that the damage had been extensive.
After an initial survey and collection of activity data over a seven day period, the free app uses this information as well as a 6-minute walk test to determine the user's risk score.
They came away empty handed after an initial survey of seven galaxies in 2012 14, but struck gold in another survey last year.
After an initial survey of cosmology and geography, Pliny starts his treatment of animals with the human race, "for whose sake great Nature appears to have created all other things".
After an initial survey to monitor the infection situation at baseline, two separate treatments were each followed by a survey to monitor treatment success 3 weeks later.
The tailored survey method was employed with an initial survey in May 2012 followed by a reminder card two weeks later and a second survey two weeks after the reminder (Dillman et al. 2009).
An initial survey questioned pupils about their knowledge of the costs and benefits of higher education, after which some schools were given an information package, including access to a website, leaflets, a video and a presentation about staying in education.
Four kitchens have been carefully selected after a detailed initial survey of the cooking arrangement and exhaust systems in all of the kitchens in the campus.
Men were monitored for an average of 11 years after the initial survey and the results showed a similar but less pronounced trend.
An additional 20 EB were added later sampling only Chinese residents after the initial survey showed a low response rate from this ethnic group as the original interviewers could not speak the local dialect.
