The phrase "an important driving force" is correct and usable in written English.
It can be used to describe a significant influence or motivation behind an action, event, or development.
Example: "Innovation has become an important driving force in the growth of the technology sector."
Alternatives: "a key motivator" or "a crucial influence".
The private economy has undoubtedly become an important driving force of Chinese economic development.
The fuel subsidy is an important driving force in groundwater depletion and over-abstraction.
Erosion was also an important driving force behind P export in the catchment.
International tests have become an important driving force in setting education policy and their influence seems to be growing.
In addition, growth factors are considered to be an important driving force for the pathogenesis of renal fibrosis.
This is an important driving force behind much of the effort in quantum cosmology to provide a well-defined version of the many-worlds or relative-state interpretations.
Economic-oriented studiesshoweds showed that small businesses are an important driving force for innovation and that they can be as innovative as larger enterprises.
The initial adsorbate concentration provides an important driving force to overcome all mass transfer resistances of dye between the aqueous and solid phases.
Initial dye concentration provides an important driving force to overcome all mass transfer resistances of all molecules between the aqueous and solid phases (Chowdhury and Saha 2010a).
This may be because initial concentration provides an important driving force to overcome mass transfer resistance of RhB between the aqueous and solid phase (Hameed et al. 2008).
The initial concentration provides an important driving force to overcome all mass transfer resistance of FA and AA between the aqueous and solid phase.
