Detours in Scope-Based Route Planning

TL;DR

This paper enhances scope-based route planning to effectively handle road closures by proposing three detour admissibility variants, improving practical navigation in dynamic road network scenarios.

Contribution

It introduces three new detour admissibility variants to extend scope-based route planning for better handling of road closures and dynamic edge weights.

Findings

Enhanced route planning algorithms for detours

Three variants of detour admissibility proposed

Improved handling of road closures in navigation

Abstract

We study a dynamic scenario of the static route planning problem in road networks. Particularly, we put accent on the most practical dynamic case - increased edge weights (up to infinity). We show how to enhance the scope-based route planning approach presented at ESA'11 to intuitively by-pass closures by detours. Three variants of a detour "admissibility" are presented - from a simple one with straightforward implementation through its enhanced version to a full and very complex variant variant which always returns an optimal detour.