With the recent developments of several bridge managements systems and their wide-spread use, bridge engineers are realizing the importance of systematic and well planned investments and appropriate management. However the results are far from satisfactory. Bridge management systems need more...

Residual value is defined as the price for which a used piece of equipment can be sold in the market at a particular time. It is an important element of the owning costs of equipment and needs to be estimated by equipment managers for making investment decisions.The purpose of this study is to...

The management of heavy construction equipment is a difficult task. Equipment managers are often called upon to make complex economic decisions involving the machines in their charge. These decisions include those concerning acquisitions, maintenance, repairs, rebuilds, replacements, and...

Competitive bidding, where the project is awarded to the lowest bidder, is a basic part of the construction industry. This method of project delivery is designed to promote healthy competition in an attempt ensure the lowest price for the project. A contractor knows that lowering a bid price...