Trimble Access Tunnels – Perpetual License Manage tunnel surveying and construction with tools for design definition, setout and as-built verification. This perpetual module license adds specialized tunnel workflows to Trimble Access, helping crews review excavation profiles and position construction features. Key Features Supports tunnel design entry and import . Captures profiles to identify underbreak and overbreak. Provides setout tools for drill and blast patterns . Displays survey results in 3D, plan and profile views . License Details Software: Trimble Access Tunnels License Type: Perpetual Application: Tunnel surveying and construction Requirement: Trimble Access General Survey perpetual license