1.

No need to mobilize materials in advance until completion of excavation, unless the laying of COD is required to be done at the same time of excavation.

For the economic operation and to save un-necessary labor cost, to avoid un-necessary labor cost, risk of working under traffic and coupler works, be sure to place order of COD for the required length in advance by measuring the length from the scaled route drawings.

Just mobilize the COD on either trailer or low-bed truck or else and lay as mounted as it is by moving forward such COD mounted vehicle. In case of heavy traffic route, installation after midnight in short span of time is possible to save traffic trouble.

Absolutely no need of mobilizing inner ducts upon completion of Outer Duct installation like the case of PVC ducting system, as COD does not need to insert inner ducts separately but built-in as a single body. COD keeps the job site clean and does not hinder traffic as much as conventional system does.

No need to place outer ducts along with the excavated trench making the job site in a mess for piece-by-piece individual connection like the case of PVC ducting system.

Quick demobilization from job site as not many facilities, equipment or materials are to be mobilized to the job site, but as simple as move-in and move-out.