Owing to the combined impact of the low bid letting system and difficult economic climate, contractors in Taiwan frequently propose relatively low bid prices to increase their chance of winning construction project bids. Contractors will have an edge if they can properly extract previous project bidding information and apply scientific methods to forecast the possible low bid price of construction projects with reasonable accuracy. Extracting bidding information about previous projects will help contractors considerably, since the forecast results can provide the basis for con tractors to establish their bidding strategies to provide a reasonable low bid price, and thereby increase their chances of winning the bid. This study examined 82 roadway construction projects with budgets under 50 million NT dollars. Regression analysis was applied to identify the relationship between owner budget, contract duration, bond, and low bid price. A low bid price forecast model of roadway construction was built to assist project owners and contractors in predicting possible low bid prices and thus to establish reasonable bidding strategies.