For maps evaluation purposes, a complete basic address in Singapore should include:
[Street Number] [Street Name], [Country] [Post Code]
e.g. 322 Yishun Central, Singapore 760322
1. Address Components in Rating Interface
The chart below illustrates the general relation between address components in Singapore, as well as the associated checkbox in the rating interface.
The table below outlines the required and optional address components for general result types. The rule applies to all Maps Evaluation tasks with some exceptions to Autocomplete.
Result Type | Search | Autocomplete | Legend |
POI Address | 79 Cairnhill Road, Singapore 229681 | 79 Cairnhill Road | Street Number Street Name Addressable Area Locality Postal Code Country |
Full Address | 79 Cairnhill Road, Singapore 229681 | ||
Transit POI | Singapore | [can be left empty] | |
Street | Cairnhill Road, Singapore | ||
Addressable Area | Trendale Tower, Singapore | ||
Neighbourhood/Locality | Ang Mo Kio, Singapore | ||
Postal Code | Singapore 229681 | 229681 | |
Natural Feature | [can be left empty] | ||
Country | Singapore | ||
Note: Table summarizes address expectations for an average result for each type.
In Singapore, postal codes are 6 digits that are specific to a street number and street name. This is an important feature in the Singapore address system as postal code points to an explicit address.
For postal code results, it is not required to return a full address. Streets do not have postal codes.
Result Address | Rating | and Explanation |
Singapore 229681 | Address Accuracy | Correct |
For postal code results, it is not required to return a full address. If a full address is returned, it must be correct and point to the same address. | ||
229681 Singapore | Address Accuracy | Correct with Formatting Issue |
For postal code results, it is not required to return a full address. However, the order of the Postal code is incorrect as postal code should come after ‘Singapore’. | ||
Yio Chu Kang Road Singapore 79 | Address Accuracy | Incorrect – Postal Code |
Streets do not have postal code in Singapore. | ||
Localities in Singapore refer to neighbourhoods. There are no localities within the official address format and hence they must not appear in any type of results with one exception – locality results, as they are only valid on their own.
Result | Rating and Explanation | |
2 Orchard Turn ION Orchard Singapore 238801 | Address Accuracy | Correct |
Address verified via official national postal authority and OneMap. | ||
2 Orchard Turn ION Orchard Orchard Singapore 238801 | Address Accuracy | Incorrect – Locality |
Locality is not part of the Singapore official address format, and must not appear in any of the addresses. | ||
Orchard Singapore | Address Accuracy | Correct |
Result address points to the Orchard locality. It should not include a postal code. | ||
For locality queries where there is a MRT station with an exact same name, both the area and the MRT station should get a rating of Excellent. This is due to the prominence of MRT stations in Singapore.
Query | Result | Rating and Explanation | |
[Ang Mo Kio] | Ang Mo Kio Singapore | Relevance | Excellent |
Result points to the Ang Mo Kio neighbourhood. | |||
Ang Mo Kio MRT | Relevance | Excellent | |
Result points to the transit station Ang Mo Kio. | |||
In Singapore, some neighborhoods may share the same exact name as street names. For locality queries where there is a street name with an exact same name, both the locality and the street name should get a rating of Excellent.
Query | Result Name | Rating and Explanation | |
[Toa Payoh Central] | Toa Payoh Central (street) | Relevance | Excellent |
Result is for the street Toa Payoh Central. | |||
Toa Payoh Central (locality) | Relevance | Excellent | |
Result points to the subzone in Singapore called Toa Payoh Central. You can verify the boundary pin by using official government resource about administrative localities in Singapore. | |||
In Singapore, addressable areas refer to designated regions like housing estates, building name, or informal neighbourhoods. These areas are optional address components in Search, Autocomplete, and Address Verification mode, but they must be correct when returned.
For a clear understanding of how to appropriately rate addressable areas in addresses, refer to the Search mode examples provided below:
Query | Result | Rating and Explanation | |
[Segar Vale] | Segar Vale Singapore | Relevance | Navigational |
Address Accuracy | Correct | ||
Result points to the Segar Vale housing estate. It fits the query intent, and address for this housing estate (addressable area) need not contain street number and street name. Address is considered | |||
correct. Any pin within the estate should be rated as Correct. |
Query | Result | Rating and Explanation | |
[802B Keat Hong Close] | 802B Keat Hong Close Singapore 682802 | Relevance | Navigational |
Address Accuracy | Correct | ||
Although the ‘Keat Hong Crest’ is an addressable area at this location, addressable areas are optional components. Therefore, even without this component, the address is rated as Correct. | |||
802B Keat Hong Close Keat Hong Crest Singapore 682802 | Relevance | Navigational | |
Address Accuracy | Correct | ||
It should be rated as Correct since all components are correct. | |||
Relevance | Navigational | ||
Address Accuracy | Incorrect – Other Issue | ||
Upon verification with OneMap, ‘Sunshine Gardens’ is not located at this location. As a result, it should be rated as Incorrect – Other Issue. | |||
When there is an exact name match for the POI query, we do not treat the locality as a valid location modifier.
Query | Result Name | Rating and Explanation | |
[Ang Mo Kio MRT Station] | Ang Mo Kio MRT | Relevance | Navigational |
Query intent is for a specific transit station with a unique name. Result satisfies intent, should be rated as Navigational. | |||
Bishan MRT | Relevance | Bad | |
Query intent is for a specific transit station with a unique name. This result is for another station which is irrelevant. | |||
Query | Result Name | Rating and Explanation | |
[Tampines mall] | Tampines Mall | Relevance | Navigational |
Query intent is for a specific mall with an exact name match. Result satisfies intent, should be rated as Navigational. | |||
Tampines One | Relevance | Bad | |
Query intent is for a specific mall with an exact name match. This result is for another shopping mall which is irrelevant. | |||
However, when there isn’t an exact name match for the POI, we can consider the locality to be a general location modifier.
Query | Result Name | Rating and Explanation | |
[Tampines Shopping Centre] | Tampines Mall | Relevance | Excellent |
Since there are no shopping centers with the same exact name, we treat this query as a category query with the neighbourhood of Tampines as the general location modifier. Both results are within Tampines and should be rated as Excellent. | |||
Tampines 1 | |||
Some addresses in Singapore contain street number tokens such as ‘Block’ and ‘Blk’ followed by the street number. These street number tokes are used commonly and should not be considered an issue.
Result Address | Rating and Explanation |
Block 322 Yishun Central Yishun Rivergreen Singapore 760322 or Blk 322 Yishun Central Yishun Rivergreen Singapore 760322 or | Address Accuracy Correct |
All variations of the address should be considered Correct as ‘Block’ and ‘Blk’ additional tokens are valid in Singapore as they are commonly seen in Addresses. |
*The following section applies only to Address Verification mode and does not apply to any other modes including Maps Search or Autocomplete mode.
Since postal codes in Singapore point to specific addresses, they can be considered as valid address input.
Query | Issue | Rating and Explanation | |
[Singapore 080019] | Even though this query does not include a street number and name, the postal code points to a specific address – 19 Cantonment Close, Singapore. | Validity | Valid |
This query is valid because the unique postal code points to one single location. | |||
Validity Invalid Reasonable address Yes The query has conflicting information as there are | |
[323 Yishun Central Query is ambiguous. 760322 Singapore 760323 points to another address – 322 Singapore 760322] Yishun Central, Singapore. | two separate locations due to the additional postal code. However, this is a reasonable address because these two locations are next to each other and can be considered as an address range. There are 2 rooftops and a user in this area will be able to find the intended location. |
Query | Result | Rating and Explanation | |
[93 Robertson Quay Rivergate, Singapore, 238255, SGP] | 93 Robertson Quay Rivergate Singapore 238255 | Validity | Valid |
Address Accuracy | Correct | ||
Building name ‘Rivergate’ should be treated as Addressable Area and it is correct at this location, thus rated as Correct. | |||
93 Robertson Quay Singapore 238255 | Validity | Valid | |
Address Accuracy | Correct | ||
The absence of ‘Rivergate’ in the address does not affect its accuracy, as it’s an optional component. Thus, the address is rated as Correct. | |||
Query | Result | Rating and Explanation | |
[299A Compassvale Street, Singapore, 541299, SGP] | Block 299A Compassvale St Compassvale Green Singapore 541299 | Validity | Valid |
Address Accuracy | Correct | ||
Estate name ‘Compassvale Green’ should be treated as Addressable Area and it is correct at this location, thus rated as Correct. | |||
*The following section applies only to Routing-Driving mode and does not apply to any other modes including Maps Search or Autocomplete mode.
Illegal U-turns
According to the Road Traffic Act of Singapore, it states that “No driver or rider of any vehicle shall make a U- turn at any road intersection, road junction or opening in a road divider unless he is permitted to do so by a road sign.”. This U-turn sign is usually seen at the divider a distance before the road intersection. Without this sign, U-turn is illegal.
