How to create corridor with Traffic Separator/Median easily in Civil 3d with single assembly

Welcome to the EthioCadGroup channel, My name is Aschalew Balcha, and all about helping you in AutoCAD Civil 3D training and mastering your skill based on my 18 years of experience in road design and construction. Civil 3D is the most powerful Software for Road Design and somebody needs help to develop his/her skill, that is why the EthioCadGroup channel is created. It is not just a civil 3D tutorial, it is presented based on the actual challenge of road design and construction to amplify the skill of civil 3D in every aspect. I try to cover most Road designs in difficult topographic terrain. The videos in EthioCadGroup Channel have been created to assist you in Geometric Design, Plan profile creation, generating complex Corridors, template cross-section generation, Quantity calculation, Civil 3D style, and labeling, Custom code set, and custom subassembly creation, and detail output and printing of Civil 3d objects and Reporting. Many sections on civil 3d for road design from a practical point of view will be covered, therefore, Dear viewers I strongly request you to subscribe to the channel to get the newly uploaded videos and please share them with others. My objective is to discharge my social responsibility for helping others, hopping, We can create a better world !!!!!!!!!!!!! Thank you Aschalew Balcha