The construction of the HS2 railway through the Chiltern Hills is complex due to congested infrastructure, requiring numerous utility diversions and new road bridges for completion.
The need to construct new bridges and divert existing utilities will result in improved infrastructure and can enhance the reliability of services in the long term.
Key challenges include managing the excavation required for the railway and navigating a congested area with close proximity to existing roadways and railways.
In congested areas like near Wendover, constructing viaducts to traverse valleys and busy roads adds significant complexity to HS2, impacting both costs and timelines.
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