The phrase "has made a substantial impact" is grammatically correct and can be used in written English.
It indicates that something or someone has caused a significant effect or influence on something else. Example: The new policy implemented by the government has made a substantial impact on the country's economy.
Now, a year after the release of his Guitar Town album, a record that has made a substantial impact on country music and steady inroads into the rock market, Earle has arrived.
In Collecting Biennials, the Whitney less-than-subtly sticks it to critics with a lineup of artistic hall-of-famers, proof that the biennial has made a substantial impact on the art world over the years.
Jamell has held numerous leadership positions throughout various organizations and has made a substantial impact on all that he focused his gifts on.
Evidence based medicine (EBM) has made a substantial impact on primary care in Spain over the last few years.
A successful second-term Labour government will need to be seen not only to have made a substantial impact on the delivery of public services and the quality of the public infrastructure - it will need to see the rate of productivity growth and British innovation pick up if it is to satisfy its own targets.
Programs in broilers and swine, described each year in the Annual Report on Zoonosis (4 ), have been in effect since the late 1980s and mid-1990s and have made a substantial impact on reducing the prevalence of Salmonella in primary food production.
This paper discusses several examples of bridges which have made a significant impact on the perception of a city and resulted in substantial changes to landscape configuration.
Nothing seems to have made a substantial difference yet.
All authors have made a substantial contribution to the manuscript.
All authors have made a substantial contribution to the publication.
Some cytogenetic subgroups are doing particularly well and the introduction of differentiation treatment with all-trans retinoic acid or arsenic trioxide in acute promyelocytic leukaemia has made a very substantial impact in this cohort.
