Work Zone Frequently Asked Questions for Designers:

1. In the Final Project Definition form, what do I really need to write in Box 6, Work Zone Strategy?

A finalized strategy or TMP is not expected since some information may be conceptual at this level. The important information to include is as follows:

• Indicate whether the project is considered significant or potentially significant.
• Indicate known or potential major impacts
• Even if the project is not considered significant, list the known elements that the TMP will address (type of TCPs, TOP issues, and PIP needs).

2. How am I supposed to know how the contractor will build the project?

There are often many ways to stage a construction project, bearing in mind traffic safety and construction efficiencies. During the design of a project, there is the requirement to provide a constructible, maintainable, safe, and mobile project concept that is translated into an effective TMP, even though the contractor may propose another TMP.

3. How do I know what is meant by safe and mobile?

These terms are definable within the context of the project. There is no one answer to fit every case and no project is completely safe or fully mobile. Complete consideration of all the factors involved will lead to conclusions that include known effective safety and mobility measures.

4. Aren't we exposed to more legal liability by providing TMP at such a detailed level?

No. A well-developed TMP that is based on known accepted policy and accurate information is actually the best defense against legal action. Poor implementation of the TMP would more likely be the cause for concern.

5. Doesn't a comprehensive TMP add more cost to the project?

Cost is a legitimate concern and cost-effectiveness and containment are intended to be part of the selected strategy analysis and TMP. The bottom line is that it less costly to include work zone costs as part of the project than it is to add them later by change order. Also, providing for safety and mobility can add costs, but these costs are usually more than offset by the benefits provided. These costs need to be identified early on in the scoping phase to provide an adequate project estimate.

6. Why can't I just reuse the TCPs from a previous project?

You may be able to do so, but not without careful consideration of all the project information. Usually, each project has some unique features or different traffic conditions, even though that work may be similar. It is strongly recommended to conduct the impact assessment process first, then determine what plans may be appropriate. You may also be able to consult with the construction office that implemented a previous TCP to determine if it was effective.

7. Where do I go for work zone assistance and answers?

Working within the structure and protocol of your office and region, there are several resources in the form of expert advice or information available. Also, inquire at the region and the HQ Design, Construction, and Traffic offices. Generally, work zone design is not a "cookbook" approach, and the designer needs to be prepared to actively pursue all available information and resources.