Section 23-12-1004 - Powers and duties(a) The State Highway Commission shall make such investigation and studies as it deems necessary to properly exercise the jurisdiction hereby conferred and shall involve Arkansas counties, municipalities, and railroads operating within this state and unions representing railroad employees.(b) Pursuant to rules providing for an opportunity of notice and hearing, the commission shall promulgate appropriate rules pertaining to the maintenance of railroad crossings of state, county, city, or municipal streets and highways.Amended by Act 2019, No. 315,§ 2412, eff. 7/24/2019.