Road works

We have excellent expertise in

Road Design

Roads are designed in conjunction with design guidelines and standards. These are adopted by national and local authorities. Design guidelines take into account speed, vehicle type, road grade (slope), view obstructions, and stopping distance. With proper application of guidelines, along with good engineering judgment, an engineer can design a roadway that is comfortable, safe, and appealing to the eye. PBL has a team of designer engineers in-house with many years of experience in this field.

With regard to geometric design of roads, we are primarily concerned with the positioning of the physical elements of the roadway according to standards and constraints. The basic objectives in geometric design are to optimize efficiency and safety while minimizing cost and environmental damage.

Geometric design also affects an emerging fifth objective called “livability,” which is defined as designing roads to foster broader community goals, including providing access to employment, schools, businesses and residences, accommodate a range of travel modes such as walking, bicycling, transit, and automobiles, and minimizing fuel use, emissions and environmental damage.

Road & Highway Construction

Road construction requires the creation of an engineered continuous roadbed, overcoming geographic obstacles and having grades low enough to permit vehicle or foot travel whilst meeting standards set by official guidelines. At PBL, we have mastered the art of construction roads and highways of the highest quality, but roads and highways that will be long lasting and require minimal maintenance. Storm drainage and environmental considerations are a major concern. Erosion and sediment controls are constructed to prevent detrimental effects. Drainage lines are laid with sealed joints in the road easement with runoff coefficients and characteristics adequate for the land zoning and storm water system.