Why Google maps can be crap at times

Pudsey Bear

Full Member
Posts
20,594
Likes
32,686
The biggest problem with Google Map's which in my go to, is if you put a town in, it never takes you to the town centre, just some arbitrary road or street, also when you get to this street, half of the map disappears under a graphic and you are lost, also a MASSIVE problem is despite it having the best data as they physically drive down almost every street & road everywhere, the speed limits are often far from correct, it doesn't know bridge heights or road widths, and there is no way to put vehicle dimensions in, why is this so?



You've raised several valid and common frustrations with
Google Maps, especially useful for users of large vehicles like campervans or motorhomes. Here are the reasons for these limitations:

1. Navigation to "Arbitrary Roads" instead of the Town Centre
When you search for a general location like "Keighley" (rather than a specific address or point of interest like "Keighley Town Hall"), Google's algorithms try to pick a relevant, accessible point within that area, which might be a main road on the edge or a well-known intersection, rather than the exact geographic or commercial centre.
  • Algorithm Logic: The search algorithm is complex and uses various factors (prominence, accessibility, nearby businesses) to determine the best default pin location.
  • Lack of Specificity: Since "town centre" isn't a single universal address point in the map data, the default chosen might seem arbitrary.
  • Solution: To get around this, search for a specific landmark, post office, or the actual name of the main street in the town centre.

2. Map Disappearing under Graphics at Destination
The graphic overlay at the destination, which shows estimated time of arrival (ETA), distance, and other information, is a common user interface design choice in the Google Maps app.
  • Design Choice: It's intended to present the key "arrival" information clearly.
  • User Frustration: As you've noted, this can obscure the final meters of the map, making it difficult to find the exact spot or specific house number on a complicated street.
  • Solution: You can usually swipe down on that information bar or tap on the map area to minimise the graphic and reveal more of the map.

3. Inaccurate Speed Limits
While Google uses Street View imagery and third-party data to determine speed limits, the data isn't always perfect or up-to-date.
  • Data Collection Methods: Speed limits are primarily sourced by algorithms reading signs in Street View photos or from official government databases.
  • Infrequent Updates: Street View cars don't constantly drive every road, so changes in speed limits might not be reflected for a year or more.
  • Local Variations: Speed limits can change due to temporary roadworks, local bylaws (e.g., 20mph zones in Wales), or the presence of streetlights, which can be difficult for a static database to track perfectly.
  • Disclaimer: Google Maps explicitly states the speed limits shown are for informational purposes only, and drivers must always obey actual road signs.
  • Reporting: While you can report general road issues, there isn't a simple, direct way to report an incorrect speed limit through the app, which makes correction a slow process.

4. No Vehicle Dimensions Input (Bridge Heights, Widths)
This is a fundamental limitation of general consumer navigation apps and is related to liability and data complexity.
  • Complexity of Data: Truck or large vehicle regulations are incredibly complex, varying by country, state, time of day, cargo type, bridge weight/height limits, road widths, and even tunnel curvature. Google would need an immense, constantly updated database that is far more detailed than what is currently required for standard cars.
  • Liability: If Google were to offer HGV or RV routing and a user got stuck under a low bridge, the potential legal liability would be enormous.
  • Target Audience: Google Maps is designed for the mass market (cars, walking, public transport), not specialised commercial or large vehicle use.
  • Commercial Alternatives: Specialised, often paid, HGV or motorhome sat nav systems (like CoPilot GPS or dedicated Garmin/TomTom units) exist precisely to solve this problem. They allow you to input your vehicle's height, weight, and width, and their maps contain the specific data to route you safely, a feature Google currently chooses not to offer.
 
Surely if you are going to a town or city you would navigate to a particular address or car park? For all its faults it saved my bacon in Newcastle the other night in the pishy rain at 11pm when the Tyne bridge was closed, two gigs emptied out at the same time and the place was rammed. Took me right around all of it and down to Gateshead. I'd still be there now I Reckon without it :D
 
Yes, if you are going to a particular place, mostly we have never been there, so we just pick a name on a map, we am adventurous bears, we like to be surprised either way by new places.

1763218809752.png
 
Unless I have a specific address as destination, I rarely enter anything.
When traveling, I'll look at map and choose a place.

What is a pain, is I can't toggle between maps views while getting directions. Layer toggle disappears, apparently should re appear if you tap screen, but it doesn't on my phone.
Possible I missed something in settings, but it's not obvious what.
 
I never have an issue with Google maps as I don’t use it (well not for navigation anyway)

The repeated conversations about satnav maps just has me thinking of Easy Rider and Fonda asking Hopper “what does the computer say?
 
Most towns have the town centre signposted Kev so I would switch the App off a couple of miles before you get there.
 
Most towns have the town centre signposted Kev so I would switch the App off a couple of miles before you get there.
NOOOOO, why did no one tell me Rob.

You are right of course, but the signs are there to route you where the town planners want you to drive, which normally isn't into the town centre.
 
Google maps provides real time traffic information, real time roadworks information, and real time speed camera information including the location of mobile speed cameras.

Whilst you cannot enter vehicle dimensions, the use of common sense combined with the automatic route redirection feature if you do not use Google maps directions makes it superior to even those SatNavs designed for campers where you can enter dimensions but still direct those without common sense down ridiculous lanes.

There have been 2 occasions this year when we have been directed to turn into a French village road with our Garmin satnav only to realise that we are never going to make the sharp turn in the narrow street at the end of the road. On both occasions we had French village locals waving frantically at us. Fortuneately we could reverse and take a more suitable route.

Whether Google Maps would have directed us down these same roads is unknown but clearly our Garmin Camper satnav did!

Also when travelling through the Forest of Dean to the forest campsite the Garmin satnav wanted us to take all sorts of weird and narrow side roads when all the campsite signs directed us along the main road. Could not work out why this was and there is nothing in the settings to prevent this.

This year we approached Nantes to discover the main bridge on the west side when you go anti clockwise on the peripheric was closed for roadworks. As a result massive queuing traffic going clockwise to Bordeaux using the east side bridge.

We used Google maps to provide us with the fastest route which avoided all this peripheric queuing entirely and rejoined the motorway south of the peripheric at junction 2. Probably saved us 30 minutes or more with its real time traffic avoidence info.
 
Last edited:
The weird navigation cam eminate from shortest rout or avoid ferries etc, I use ot locally sometimes and it'll take you down side streets to shorten a journey.
 
Google maps provides real time traffic information, real time roadworks information, and real time speed camera information including the location of mobile speed cameras.

Whilst you cannot enter vehicle dimensions, the use of common sense combined with the automatic route redirection feature if you do not use Google maps directions makes it superior to even those SatNavs designed for campers where you can enter dimensions but still direct those without common sense down ridiculous lanes.

There have been 2 occasions this year when we have been directed to turn into a French village road with our Garmin satnav only to realise that we are never going to make the sharp turn in the narrow street at the end of the road. On both occasions we had French village locals waving frantically at us. Fortuneately we could reverse and take a more suitable route.

Whether Google Maps would have directed us down these same roads is unknown but clearly our Garmin Camper satnav did!

Also when travelling through the Forest of Dean to the forest campsite the Garmin satnav wanted us to take all sorts of weird and narrow side roads when all the campsite signs directed us along the main road. Could not work out why this was and there is nothing in the settings to prevent this.

This year we approached Nantes to discover the main bridge on the west side when you go anti clockwise on the peripheric was closed for roadworks. As a result massive queuing traffic going clockwise to Bordeaux using the east side bridge.

We used Google maps to provide us with the fastest route which avoided all this peripheric queuing entirely and rejoined the motorway south of the peripheric at junction 2. Probably saved us 30 minutes or more with its real time traffic avoidence info.

I agree. I think if you use Google maps in conjunction with a laptop to plan a route before sending it to your phone its unbeatable. I did the same when I relied on the old TomTom. The only thing I am wary of is if it wants to divert you around slow moving traffic once on the go. It has to be a considerable saving before Ill accept it with a van the size of ours. Avoiding road closures though you have no choice and this year it was brilliant. Not one single "Route Barre" sign and normally you would come across plenty over a long trip with a standard sat nav.
 
The one thing I don't like about Google maps is that I've been unable to set up audio alert for speeding.
 
Back
Top