diff --git a/lib/gtfs.rb b/lib/gtfs.rb
index 9d42ec2..840e70f 100644
--- a/lib/gtfs.rb
+++ b/lib/gtfs.rb
@@ -14,6 +14,10 @@
 require 'gtfs/fare_rule'
 require 'gtfs/frequency'
 require 'gtfs/transfer'
+require 'gtfs/translation'
+require 'gtfs/pathway'
+require 'gtfs/attribution'
+require 'gtfs/level'
 
 require 'gtfs/source'
 require 'gtfs/url_source'
diff --git a/lib/gtfs/attribution.rb b/lib/gtfs/attribution.rb
new file mode 100644
index 0000000..d74b97f
--- /dev/null
+++ b/lib/gtfs/attribution.rb
@@ -0,0 +1,20 @@
+module GTFS
+  class Attribution
+    include GTFS::Model
+
+    has_required_attrs :organization_name
+    has_optional_attrs :attribution_id, :agency_id, :route_id, :trip_id, :is_producer,
+    :is_operator, :is_authority, :attribution_url, :attribution_email, :attribution_phone
+
+    attr_accessor *attrs
+
+    collection_name :attributions
+
+    required_file false
+    uses_filename 'attributions.txt'
+
+    def self.parse_attributions(data, options={})
+      return parse_models(data, options)
+    end
+  end
+end
diff --git a/lib/gtfs/fare_attribute.rb b/lib/gtfs/fare_attribute.rb
index 85c63dd..ac6ed6a 100644
--- a/lib/gtfs/fare_attribute.rb
+++ b/lib/gtfs/fare_attribute.rb
@@ -3,7 +3,7 @@ class FareAttribute
     include GTFS::Model
 
     has_required_attrs :fare_id, :price, :currency_type, :payment_method, :transfers
-    has_optional_attrs :transfer_duration 
+    has_optional_attrs :transfer_duration, :agency_id
     attr_accessor *attrs
 
     collection_name :fare_attributes
diff --git a/lib/gtfs/feed_info.rb b/lib/gtfs/feed_info.rb
index 32298d8..2f58a4f 100644
--- a/lib/gtfs/feed_info.rb
+++ b/lib/gtfs/feed_info.rb
@@ -3,7 +3,7 @@ class FeedInfo
     include GTFS::Model
 
     has_required_attrs :publisher_name, :publisher_url, :lang
-    has_optional_attrs :start_date, :end_date, :version
+    has_optional_attrs :start_date, :end_date, :version, :contact_email, :contact_url, :default_lang
     attr_accessor *attrs
 
     column_prefix :feed_
diff --git a/lib/gtfs/level.rb b/lib/gtfs/level.rb
new file mode 100644
index 0000000..96cc5a3
--- /dev/null
+++ b/lib/gtfs/level.rb
@@ -0,0 +1,17 @@
+module GTFS
+  class Level
+    include GTFS::Model
+
+    has_required_attrs :level_id, :level_index
+    has_optional_attrs :level_name
+    attr_accessor *attrs
+
+    collection_name :levels
+    required_file false
+    uses_filename 'levels.txt'
+
+    def self.parse_levels(data, options={})
+      return parse_models(data, options)
+    end
+  end
+end
diff --git a/lib/gtfs/model.rb b/lib/gtfs/model.rb
index ecf0018..c59f103 100644
--- a/lib/gtfs/model.rb
+++ b/lib/gtfs/model.rb
@@ -39,7 +39,7 @@ def required_attrs
       end
 
       def attrs
-       required_attrs + optional_attrs
+        required_attrs + optional_attrs
       end
 
       #####################################
diff --git a/lib/gtfs/pathway.rb b/lib/gtfs/pathway.rb
new file mode 100644
index 0000000..3e1bf9d
--- /dev/null
+++ b/lib/gtfs/pathway.rb
@@ -0,0 +1,19 @@
+module GTFS
+  class Pathway
+    include GTFS::Model
+
+    has_required_attrs :pathway_id, :from_stop_id, :to_stop_id, :pathway_mode, :is_bidirectional
+    has_optional_attrs :length, :traversal_time, :stair_count, :max_slope, :min_width, :signposted_as,
+                       :reversed_signposted_as
+
+    attr_accessor *attrs
+    collection_name :pathways
+
+    required_file false
+    uses_filename 'pathways.txt'
+
+    def self.parse_pathways(data, options={})
+      return parse_models(data, options)
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/gtfs/route.rb b/lib/gtfs/route.rb
index 92af4fe..325cc41 100644
--- a/lib/gtfs/route.rb
+++ b/lib/gtfs/route.rb
@@ -3,7 +3,7 @@ class Route
     include GTFS::Model
 
     has_required_attrs :id, :short_name, :long_name, :type
-    has_optional_attrs :agency_id, :desc, :url, :color, :text_color
+    has_optional_attrs :agency_id, :desc, :url, :color, :text_color, :sort_order
     attr_accessor *attrs
 
     column_prefix :route_
diff --git a/lib/gtfs/source.rb b/lib/gtfs/source.rb
index a2c7818..0f6aec7 100644
--- a/lib/gtfs/source.rb
+++ b/lib/gtfs/source.rb
@@ -5,9 +5,9 @@
 module GTFS
   class Source
 
-    ENTITIES = [GTFS::Agency, GTFS::Stop, GTFS::Route, GTFS::Trip, GTFS::StopTime,
-                GTFS::Calendar, GTFS::CalendarDate, GTFS::Shape, GTFS::FareAttribute,
-                GTFS::FareRule, GTFS::Frequency, GTFS::Transfer, GTFS::FeedInfo]
+    ENTITIES = [GTFS::Agency, GTFS::Stop, GTFS::Route, GTFS::Trip, GTFS::StopTime, GTFS::Calendar, GTFS::CalendarDate,
+                GTFS::Shape, GTFS::FareAttribute, GTFS::FareRule, GTFS::Frequency, GTFS::Transfer, GTFS::FeedInfo,
+                GTFS::Attribution, GTFS::Pathway, GTFS::Translation, GTFS::Level]
 
     REQUIRED_SOURCE_FILES = ENTITIES.select(&:required_file?).map(&:filename)
     OPTIONAL_SOURCE_FILES = ENTITIES.reject(&:required_file?).map(&:filename)
diff --git a/lib/gtfs/stop.rb b/lib/gtfs/stop.rb
index 15e07b9..b85a2e0 100644
--- a/lib/gtfs/stop.rb
+++ b/lib/gtfs/stop.rb
@@ -3,7 +3,8 @@ class Stop
     include GTFS::Model
     
     has_required_attrs :id, :name, :lat, :lon
-    has_optional_attrs :code, :desc, :zone_id, :url, :location_type, :parent_station, :timezone, :wheelchair_boarding
+    has_optional_attrs :code, :desc, :zone_id, :url, :location_type, :parent_station, :timezone, :wheelchair_boarding,
+                       :level_id, :platform_code
     column_prefix :stop_
     attr_accessor *attrs
 
diff --git a/lib/gtfs/translation.rb b/lib/gtfs/translation.rb
new file mode 100644
index 0000000..b60247d
--- /dev/null
+++ b/lib/gtfs/translation.rb
@@ -0,0 +1,18 @@
+module GTFS
+  class Translation
+    include GTFS::Model
+
+    has_required_attrs :table_name, :field_name, :language, :translation
+    has_optional_attrs :record_id, :record_sub_id, :field_value
+
+    attr_accessor *attrs
+    collection_name :translations
+
+    required_file false
+    uses_filename 'translations.txt'
+
+    def self.parse_translations(data, options={})
+      return parse_models(data, options)
+    end
+  end
+end
\ No newline at end of file
diff --git a/spec/gtfs/attribution_spec.rb b/spec/gtfs/attribution_spec.rb
new file mode 100644
index 0000000..5f06aaa
--- /dev/null
+++ b/spec/gtfs/attribution_spec.rb
@@ -0,0 +1,14 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe GTFS::Attribution do
+  describe 'Attribution.parse_attributions' do
+    let(:header_line) {"organization_name\n"}
+    let(:invalid_header_line) {"\n"}
+    let(:valid_line) {"Transit Feed Solutions Tokyo\n"}
+    let(:invalid_line) {"\n"}
+
+    subject {GTFS::Attribution.parse_attributions(source_text, opts)}
+
+    include_examples 'models'
+  end
+end
\ No newline at end of file
diff --git a/spec/gtfs/level_spec.rb b/spec/gtfs/level_spec.rb
new file mode 100644
index 0000000..298230f
--- /dev/null
+++ b/spec/gtfs/level_spec.rb
@@ -0,0 +1,14 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe GTFS::Level do
+  describe 'Level.parse_levels' do
+    let(:header_line) {"level_id,level_index\n"}
+    let(:invalid_header_line) {",level_index\n"}
+    let(:valid_line) {"L0,0\n"}
+    let(:invalid_line) {",1\n"}
+
+    subject {GTFS::Level.parse_levels(source_text, opts)}
+
+    include_examples 'models'
+  end
+end
\ No newline at end of file
diff --git a/spec/gtfs/pathway_spec.rb b/spec/gtfs/pathway_spec.rb
new file mode 100644
index 0000000..19de768
--- /dev/null
+++ b/spec/gtfs/pathway_spec.rb
@@ -0,0 +1,14 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe GTFS::Pathway do
+  describe 'Pathway.parse_pathways' do
+    let(:header_line) {"pathway_id,from_stop_id,to_stop_id,pathway_mode,is_bidirectional\n"}
+    let(:invalid_header_line) {",rom_stop_id,to_stop_id,pathway_mode,is_bidirectional\n"}
+    let(:valid_line) {"E1N1,E1,N1,2,1\n"}
+    let(:invalid_line) {"E1N1,E1,,,1\n"}
+
+    subject {GTFS::Pathway.parse_pathways(source_text, opts)}
+
+    include_examples 'models'
+  end
+end
\ No newline at end of file
diff --git a/spec/gtfs/translation_spec.rb b/spec/gtfs/translation_spec.rb
new file mode 100644
index 0000000..e238a7e
--- /dev/null
+++ b/spec/gtfs/translation_spec.rb
@@ -0,0 +1,14 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe GTFS::Translation do
+  describe 'Translation.parse_translations' do
+    let(:header_line) {"table_name,field_name,language,translation\n"}
+    let(:invalid_header_line) {",stop_name,,translation\n"}
+    let(:valid_line) {"stops,stop_name,en,Tokyo Station\n"}
+    let(:invalid_line) {",,,en\n"}
+
+    subject {GTFS::Translation.parse_translations(source_text, opts)}
+
+    include_examples 'models'
+  end
+end
\ No newline at end of file