Traffic growth nomenclature: The volume of traffic that appears on a facility due to improvements carried out in the surrounding (adjacent) area is termed

Introduction / Context:
Forecasting traffic requires distinguishing sources of future demand. Planners separate baseline growth from traffic resulting from land-use changes and from traffic induced by the project’s own improvements.

Given Data / Assumptions:

• “Adjacent area” improvements (new housing, shopping centres, industrial estates) are external to the project roadway itself.
• We aim to identify the correct terminology for traffic arising from such external development.

Concept / Approach:
Development traffic is the additional traffic attributed to new developments in the corridor influence area. Generated (induced) traffic is the extra demand caused by the project improvement itself (e.g., better speeds/less congestion). Normal growth comes from organic growth of base trips linked to population and income trends.

Step-by-Step Solution:
Classify the source: improvements in adjacent area (land use), not on the road facility itself.Map this to the terminology: development traffic.Select the correct option accordingly.

Verification / Alternative check:
Transport planning texts and models (four-step, activity-based) explicitly treat land-use driven demand separately from induced demand, validating the terminology.

Why Other Options Are Wrong:

• Generated traffic growth: tied to the facility’s own upgrade benefits.
• Normal traffic growth: baseline trend without new developments.
• Current traffic: existing observed volumes only.

Common Pitfalls:

• Double-counting development traffic as both normal growth and generated demand.
• Ignoring staging of developments which phases traffic arrivals over multiple years.

Final Answer:
Development traffic