Navigation Device Alternative Route Display Segmentation
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Solution Overview
Problem
Current navigation systems often fail to provide users with reliable alternative routes, leading to decreased user confidence, especially in well-known areas, as they may suggest routes that avoid U-turns unnecessarily, deviate from expected paths due to traffic, or fail to offer viable alternatives, resulting in frustration and mistrust.
Innovation Solution
A navigation device that automatically computes and displays alternative routes without user intervention, showing them alongside the main route with differences in distance and travel time, using distinct icons and colors, and allowing users to seamlessly switch to alternative routes by driving them, thus enhancing user control and confidence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the navigation system provides only a single main route, then the device complexity is reduced and ease of operation is improved, but user confidence decreases and reliability is worsened because users cannot verify alternative options or switch when the main route becomes problematic
Solution Approach 1:
The navigation instructions are segmented into main route instructions and alternative route instructions, displayed separately and simultaneously. This allows users to see both options without overwhelming the interface, resolving the contradiction by organizing complex information into manageable segments that maintain user confidence while avoiding excessive device complexity
Solution Approach 2:
The alternative route instructions are nested within the same navigation interface as the main route instructions, with the alternative advice icon integrated into the existing display layout. This nesting approach allows multiple levels of navigation information to coexist without increasing overall interface complexity, thereby improving reliability through enhanced information provision while maintaining ease of operation
2Productivity
If the navigation system automatically computes alternative routes, then productivity is improved by providing instant confirmation of alternative route ideas, but device complexity increases due to additional computation and display requirements
Solution Approach 1:
The system pre-computes and stores multiple alternative routes in advance, so that when users need alternative options, the calculations are already complete and ready for immediate display. This preliminary action resolves the contradiction by enabling fast productivity (instant alternative route provision) while the computational complexity is distributed over time during the pre-computation phase rather than during active navigation
Solution Approach 2:
The navigation system automatically computes and displays alternative routes without requiring user intervention or manual requests. This self-service capability improves productivity by providing instant confirmation of alternative route ideas, while the automated nature of the process manages complexity through algorithmic efficiency rather than user-managed complexity
3Loss of information
If the navigation system provides detailed alternative route information, then loss of information is reduced and user confidence is improved, but ease of operation deteriorates due to increased information overload on the display
Solution Approach 1:
Different parts of the display provide different levels of information detail: the main route instructions provide comprehensive guidance, while alternative route instructions provide condensed essential information through dedicated icons and brief descriptors. This local quality differentiation resolves the contradiction by providing detailed information where needed (maintaining low information loss) while keeping other areas concise (maintaining ease of operation)
Solution Approach 2:
The system uses distinct visual indicators such as colored icons (e.g., blue diamond for alternative routes) to differentiate between main and alternative route instructions. This visual coding allows users to quickly distinguish and process information without reading all details, resolving the contradiction by enabling rich information provision through color-coded differentiation that maintains display usability through rapid visual recognition
Data Source
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AI summary
There is provided a navigation device, the navigation device operable to calculate routes to one or more destinations, the device further operable to provide a navigation instruction together with an alternative navigation instruction. There is also provided a method of providing navigation instructions for a navigation device, the method comprising the steps of (i) calculating routes to one or more destinations, (ii) providing a navigation instruction together with an alternative navigation instruction. There is also provided a computer program product operable to execute on a navigation device, the computer program product operable to calculate routes to one or more destinations, the computer program product further operable to provide a navigation instruction together with an alternative navigation instruction.