<prompt> Translate the following text to SwahiliFHWA implemented a balanced approach to managing its senior executive performance in response to its 1999 employee satisfaction survey.  <response>: FHWA ilitekeleza mbinu ya usawa ya kusimamia utendaji wa mtendaji wake wa juu katika kujibu uchunguzi wake wa kuridhika kwa wafanyikazi wa 1999. 