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Area code 593 Common abbreviation EC Last updated 15-2-2014
Road class Syntax explanation Administrative subordination Sub classes Zones System Remarks
National highway E[0-9]<1-3>{[A-C]} national Primary E[0-9][05] grid Dark blue shields with white text
SecondaryOther 1- and 2-d numbers Green shields with orange text
3-d numbers Derived from 2-d numbers
Provincial highway [0-9]<1-3> province Primary [1-9] Some clustering Light blue shields
Secondary 1[0-9][0-9]
[5-8][0-9] Based on first digit
General description: Odd 1- and 2- digit numbers generally denote north-south routes, while even 2-digit numbers denote east-west routes. Numbers increase in eastbound and southbound direction respectively. After numbers were changed, there are now more violations to this system, for example 28 is north of 20, and 48 is a north-south route.
There are no 1-digit even numbers.

Provincial highways are only numbered on signs in Guayas (around Guayaquil).
Road signs: Green with white text, road numbers have the same shape as American Interstate highways but different colors: dark blue with white digits for 1- and 2-digit numbers, green with orange text for 3-digit numbers and light blue with black or white text for provincial highways.
History: Around 2000, many numbers were changed. The main north-south routes 25, 35 and 45 remained largely unchanged but almost all even numbers were decreased and some 2-digit numbers were replaced by 3-digit numbers. Letter suffixes were also introduced.
Sources and links: various maps and websites
    Official links:
  1. Ministerio de transporte y obras publicas

    Other links:

  2. Route list on Wikipedia
  3. Map of Guayas provincial highways
  4. Example of a primary number
  5. Example of a secondary (green) shield
  6. Example of a provincial number with white digit
  7. Example of a provincial number with black digit
  8. Other pages within this site:

  9. Route list and conversion table

Marcel Monterie