Thank you, Mr. Chairman. I was interested in one of the things the Minister mentioned. In the area of planning, when you plan to build a highway I realize it borders on the capital side of the budget, but it comes in the planning area. I recognize the fact that it does cost a lot of money to build roads in this territory, especially in the shield area. I was curious, Mr. Chairman, if it is sometimes cheaper to build a new road, than it is to rebuild an existing road. When it comes to having to restrict traffic, the contractor has to employ certain restrictions as to when he can work and how much he can work for blasting, heavy equipment, et cetera. I wonder if it is sometimes more economical to build a road, rather than to rebuild a road.