- How to Automatically Zoom and Center End Points:
- Enter a start address and select a trailhead.
- Click the "get estimates" button, then wait for the resulting route map to begin loading.
- As the map begins to load, click the green balloon at either the start or end of the route. This automatically centers the map and zooms it to street level.
- (To center "Any" point along the route, right-click the point, then select "Center Map Here" from the pop-up menu.)
- How to dynamically explore alternatives routes:
- Enter a start address and select a trailhead.
- Click the "Get Estimates" button, then wait for the resulting route map to fully load.
- Drag any point along the displayed route-line to explore route alternatives. The route-line is dynamically redrawn as you drag it. Also, a pop-up window is dynamically displayed with revised distance and time estimates, as you drag the route.
- When you drop the route after dragging it, the route descriptions, distances, and times are automatically updated.
- To see real-time traffic data, click the Traffic button. (Only available for downtown Denver.) When the traffic overlay is activated, route times are revised to reflect current traffic conditions. (The Traffic option can be slow with Dial-up connections.)
- Click your browser's back button to undo route changes.
- Troubleshooting:
- If GoogleMaps stops returning results, try clearing your browser cache.
- Make sure Cookies and JavaScript are enabled in your browser.
- For more suggestions see Google's Troubleshooting Guide:
http://maps.google.com/support/bin/topic.py?topic=10781&hl=en
- Traffic patterns are color coded to indicate approximate travel speed. (Red < 25 mph, Yellow=25 to 50 mph, Green > 50 mph, Grey = no data)
- To delete a destination-point, right-click its (balloon shaped) icon, then select "Remove This Destination" from the pop-up menu.
- For more information watch the Google video: http://maps.google.com/help/maps/directions/index.html
Disclaimer: This application is designed to return the standard trailhead routes, as described by Gerry Roach.To achieve this, many of the routes listed have been hard-coded from the trailheads out to "main" roads. This was done to prevent Google from returning alternate (unproven) routes. (Now here is the disclaimer part.) Please Remember: Computer generated driving instructions are not always completely reliable. Routing algorithms sometimes return routes that include un-improved and/or un-maintained roads. While this may cause only minor inconvenience in urban areas, it can lead to more serious problems in Colorado's back country, where un-improved and/or un-maintained roads often require 4 wheel drive -- and can be impassible in wet or wintry weather. When in doubt you should confirm these routes with more reliable sources, such as printed maps or guide books where routes are classified and/or fully described.
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Notes:
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Download your own copy of this web page in zip file format: getestimates.zip (16kb)
{The zip file contains the following files: getestimates.html, formretain.js (a JavaScript used
to save the start address and user preference fields), and thlist.gif.}
Created 5/4/07
Published 9/16/07
Last Modified 6/24/09
